NASA is the most profitable gov agency and yet the most under-budget one. If 10% of defense budget could be granted to NASA for 5 years it would be awesome
@loopmantra8314
2 жыл бұрын
Like NdGT said - all they gotta do is convince the congress that China is about to colonize Mars and I quote "They'd be granted funds so fast it would take us to Mars in a year or two" :D
@Ashdad99
2 жыл бұрын
NASA isn't part of their imperialistic mission. If NASA happens to have a satellite fall out of the sky on Beijing or hit Putin they might get a boost.
@bigpompano1659
2 жыл бұрын
Maybe China will fund NASA after they’ve taken over
@frozenfrosty00
2 жыл бұрын
Profitable???🤣
@Belioyt
2 жыл бұрын
@@frozenfrosty00 yes profitable. The device you are using to cynically write that comment was made possible by the science and engineering pioneered at NASA
@freespirit995
2 жыл бұрын
That was an extremely impressive video. As a non-scientist but with a keen interest in astronomy, I found the presentation clear and accessible. You have a real gift for explaining complex science to the layman! Thank you!
@thomgizziz
2 жыл бұрын
But dude needs to stop it with the intonation that he is using. He is trying to make his voice sound spiritual and having more import and his writing uses superfluous words for no reason other than being pompous and trying to make it sound more flowery. This is what idiots do to try and make themselves feel smarter than others and don't understand that it makes them look like a fool.
@masmedsalem
2 жыл бұрын
@Thom the guy is making it catchy, and to be fair he's really good at it. Most of people here like it, so if *you* don't, mate, go home.
@Blahblahblah1987
2 жыл бұрын
@@masmedsalem he’s not wrong though.
@douglaswilkinson5700
2 жыл бұрын
@@masmedsalem Spot on! "Those who mind don't matter & those who matter don't mind!" Who cares how he sounds! It's the quality of the information not its delivery.
@Gimmefish
2 жыл бұрын
@@thomgizziz get mad
@SonicBoone56
2 жыл бұрын
"This is Cool Worlds, we expect the best." Extremely impressive that you ran a simulation of what Kepler should have seen with our current understanding of the most common star types.
@MaxPower-11
2 жыл бұрын
The Achilles heel of trying to locate extrasolar plants using the transit method is that the edge of the planet’s orbital plane must be oriented towards us. Since other solar systems’ orbital planes are randomly tilted throughout the galaxy, even if a given solar system actually contains an Earth-like planet, the chances of Kepler picking up that planet are minuscule.
@ritsh_
2 жыл бұрын
the vast majority of orbital planes are oriented toward us.
@MaxPower-11
2 жыл бұрын
@@ritsh_ Absolutely not. The orbital planes of Solar systems in the Milky Way galaxy are completely random and there is no physical process that would make all or most of them align together.
@metorilt
Жыл бұрын
We know he said that in the video.
@ascherlafayette8572
Жыл бұрын
@@MaxPower-11 source?
@MaxPower-11
Жыл бұрын
@@ascherlafayette8572 Unfortunately, KZitem does not allow links in comments. See article entitled “What percent of star systems have orbits in the right orientation for scientists to find exoplanets through the transit method?” from the March 2013 issue of Astronomy magazine. According to the article, the chance of any given solar system that contains an Earth-like planet orbiting at 1 AU with a 365-day year in the galaxy having an orbital plane that is aligned such that we could detect that planet from Earth using the transit method is less than 0.5%.
@atomicgeneral
2 жыл бұрын
The fact that stars' variability is 10x more than anticipated surely goes a long way to explaining the dearth of discovered exo-earths.
@Interrobang212
2 жыл бұрын
"Not reflective of our current state of knowledge" is the most respectfully delivered diss I have ever heard.
@johnstrawb3521
2 жыл бұрын
11:55 - Speaking of which, the number 43 _reeks_ of creating 'facts' to fit your prior hypothesis.
@davidboyle1902
2 жыл бұрын
Thank you for this. I was saddened to hear about the problems Kepler started having, and sadder still when it died. A fantastic instrument killed by mechanical failures. If only we could have gone back and fixed it. Now I realize that there was no fixing possible. That Kepler was simply unable to do what people had hoped it could do. I’m still sad, but now for another reason. We need a bigger, better instrument, one that may need to operate on different principles. Fortunately there are behemoth launch vehicles on the not too distant horizon. When they are flying, perhaps we can send that bigger, better telescope into space to try again to find Earth’s twin.
@jbbeiser983
Жыл бұрын
What for?
@referensipi1664
Жыл бұрын
We have JWST now, 100 times more powerful than Kepler
@coling8176
Жыл бұрын
How far away are these Earth-like planets and shouldn’t we figure out how to reach them before getting too excited?
@roccodevillers8860
Жыл бұрын
@@coling8176 Having a good idea how many habitable worlds there are and possibly detecting life signs etc important to understand where we come from and if we have company in galaxy. Agree no one is visiting anytime soon!
@Fido-vm9zi
10 ай бұрын
I think I read the Mars Rover can self-repair, but I'm not entirely sure.
@SimplySammyK
2 жыл бұрын
I'm really hoping the james webb telescope finds something. I watched its deployment live on their stream and I've been so inspired and excited about this new breath of life in deep space
@ossiehalvorson7702
2 жыл бұрын
Processed its first photons! Wonder how all those "it has so many single points of failure it's 100% guaranteed it's going to fail" naysayers are feeling now. Apparently the anti-science philosophy includes anti-engineer by default now too. Zero faith in some of the best minds on Earth.
@ontheruntonowhere
2 жыл бұрын
@@ossiehalvorson7702 I don't think it signifies a lack of faith, but rather a realistic assessment of the possibility of failure, not unknown in spacecraft launches or deployments JWST is a hugely ambitious undertaking. The fact that it appears to be working so far is not only a testament to the engineers at NASA and Arianne, but also a bit of a miracle (not a real one, of course) that such a complex machine wasn't minutely jostled in exactly the wrong way.
@ossiehalvorson7702
2 жыл бұрын
@@ontheruntonowhere There's a pretty major difference between recognizing it could fail and being 100% certain of it though. I wasn't holding my breath, but I wasn't running around telling everyone it was only a matter of time until something vital failed.
@ontheruntonowhere
2 жыл бұрын
@@ossiehalvorson7702 Haha, I was sure it would blow up on the pad. I'm very glad it didn't. I think most of the people who said they were 100% certain of failure were 100% looking for attention.
@Nocturne83
2 жыл бұрын
I am pretty optimistic that we will discover something in the next 25 years. Now that governments all over the world have acknowledged the UFO Phenomenon, we may even be close to making contact with E.Ts. Let's Just hope they Come in peace..
@Deep_Divers
2 жыл бұрын
What a great high quality presentation. I love the simulation you ran. Real science and engineering always asks the question "Why was the result different than the prediction/expectation?" Imagine if we applied that question to our everyday lives and modified our behavior accordingly.
@manoz6194
2 жыл бұрын
You probably don't realise this already happens by the people that control society through AI and data. How do you think they convinced people there was a pandemic for the last two years but faced barely any resistance. They have been doing social engineering using education and the media for decades to modify peoples behaviours, hopes, dreams and fears.
@harrietharlow9929
2 жыл бұрын
That would be wonderful. Unfortunately we don't seem to be mature enough to think before we act. Maybe one day, we'll reach that point--if we don't render ourselves extinct first.
@juaneer
8 ай бұрын
You mean you don't apply that question daily?
@Deep_Divers
8 ай бұрын
How clever you must feel as you troll the internet@@juaneer
@juaneer
8 ай бұрын
@@Deep_Divers I'm being serious, as an engineer myself I've always wondered about outcomes and the process of things, even stuff in daily life. You should try too, question everything
@bkbland1626
2 жыл бұрын
Your rigor is greatly appreciated. I share your enthusiasm for locating planets like our own. I think the rare Earth hypothesis may actually prove to be the case. As always, we'll see. Groove on, Dr. Kipping.
@JayVal90
2 жыл бұрын
It’s cheaper to build one $24B telescope that works than 3 $11B telescopes that don’t.
@ChinnuWoW
2 жыл бұрын
It's also a lot cheaper than those useless F35s
@pixelwash9707
2 жыл бұрын
How much of these cost estimates are for the launch vehicle(s)? If SpaceX Starship is successful in cutting the cost to get stuff into space, how will that affect the numbers?
@doctorrobert1339
2 жыл бұрын
It would be pocket change if NASA could get the amount of funding that the US military does.
@JayVal90
2 жыл бұрын
@@doctorrobert1339 Unfortunately a well-funded NASA will not deter the military aggressions of Russia, China, North Korea, etc.
@WilliamFord972
2 жыл бұрын
@@JayVal90 However, it may be necessary as the next space race initiates.
@criddell86
Жыл бұрын
In many years of watching videos involving technical and scientific explanations and presentations (and attempting to do some myself). This has to be the best presented I have ever seen. I take my hat off to you and your ability to explain and present complex concepts in simple, understandable terms but at the same time with no loss of intrigue for the facts and underlying complexities. Thank you so much for this.
@mattsmith5421
2 жыл бұрын
Your slow narration over space footage is unmatched. Hopefully one day there will be a full video of just that.
@bozomori2287
2 жыл бұрын
His accent would be put to better use if he narrated over susage frying videos.
@RonHarrisMe
2 жыл бұрын
Before I retired, I used to teach technical/computer/networking/security topics. Sometimes explaining the complex can be extremely difficult. Prof. Kipping has made this task seem simple. People rarely surprise me, in fact I can't remember the last person who has, but Prof. Kipping has done just that. WOW.
@alexandermartin1837
2 жыл бұрын
Excellent video , cool worlds and the exoplanets channel are my favs !!
@chinchfiles
2 жыл бұрын
Don't forget Astrum
@geemanbmw
2 жыл бұрын
Exoplanets needs to seriously start uploading videos. He's been ghosting
@MoCsomeone
2 жыл бұрын
Check these out too Isaac Arthur Event Horizon John Michael Godier Anton Petrov Dr Becky PBS spacetime Fraser Cain Paul M Sutter
@DrTubeman
2 жыл бұрын
Check out Melodysheep, they have a series called "Life Beyond" and have just released the third episode in the series, it is an absolutely amazing production.
@kreggur2864
2 жыл бұрын
@@MoCsomeone Don't forget SEA!
@salanieyow2479
2 жыл бұрын
Another fantastic video, thank you Cool worlds team. Every time I watch video on this channel, I love the earth even more because it shows us how special we are and how luck we are to have amazing 🌍
@SocksWithSandals
2 жыл бұрын
Kepler proved what a hard problem finding Earth-like planets by transit is. Maybe some of the larger launch vehicles on the drawing board now will permit large enough photon collection to rise above the noise.
@jebes909090
Жыл бұрын
Or earth is unique . Our system is certainly striking when you look at all yhe systems discovered so far. They are sp random and chaotic. Our system is almost disconcertinly orderly. Maybe its just that wr have all the information on it and only bits on others, but i dont know. Im not saying ours was constructed but *ancient aliens meme*
@tylerdurden3722
Жыл бұрын
@@jebes909090 No really, ours is more "chaotic" than most. E.g. Most stars have planets that are tidally locked. Being tidally locked means their axis is not tilted and doesn't wobble. Many stars have planets that have orbits that are ordered. Each next planet away from the star orbiting at exactly twice the rate of the previous one. Many planets might not be volcanic active anymore either (due to age, etc). It's the disorderly randomness of earth that makes it unique among the tiny bit we've been able to see a tiny bit of.
@hughjorgen1051
2 жыл бұрын
Can’t shake the feeling that human desire bias that we’re not alone is factoring into their hypotheses, then we’re disappointed when the data falls way short.
@Deeplycloseted435
2 жыл бұрын
We just CAN’T see that far. The area that we can detect transits, is so tiny compared to the size of our galaxy. These are just our very nearest neighbors. We have a long way to go. We’re pretty good at seeing the largest things from very far away. We can see the forrest, but not the trees. And yes, of course we are biased. We struggle to think outside of our own minds and experience all the time. Its why most intelligent alien concepts have four limbs, stand upright, with two ears, two eyes, mouth and nose. Where did we ever get these ideas? Hmm.... Even if we look at the Earth over it’s history.....how much of Earth’s 4.5 billion years of existence, would we have considered it “habitable”? Because life had already existed a long, long, LONG time here......before a human being could have stood up, stretched out, and taken a deep breath without dying instantly. Oxygen in the atmosphere only showed up about 2 billion years ago. Thanks plankton. Even then, it caused a mass extinction, and the land was completely barren at the time. It then took another 1.5 billion years for plants to develop and move onto land. So for 4 of 4.5 billion years of Earth’s life......any other alien species looking for complex life on other planets, may have easily glossed over our water world as toxic and barren, besides a smattering of simple life near the edges of it’s vast seas. Perhaps that is common? Perhaps not? We don’t know? So its not just WHERE are the Earth analogs and alien life, but WHEN. Our species has had tech in space for less than 80 years. We are already squirming about, “Where is our new planet and where are all the aliens?” We literally JUST figured out that our galaxy was not the universe. Still, while the true end results of Kepler may seem disappointing, we have learned so much. When I was a kid (80’s), we assumed that most stars didn’t have a system of planets (wrong), and we assumed that most planetary systems would be like ours with rocky planets nearer to a star and gas planets further out (also wrong). Our human assumptions have been wrong SO MANY times in the history of science. Luckily we find ways to challenge or prove those assumptions. In doing so, we expand our understanding, one brick at a time.
@carjamlaw753
2 жыл бұрын
I finally found the smart group in this set of comments. Thank you. I'm weary of the logical being overlooked for the desired.
@carjamlaw753
2 жыл бұрын
@@woodypigeon Yes. It's the only chance the galaxy has to avoid humanity's taint. Imagine if Dune happens. Yuck!
@osiris7945
6 ай бұрын
if we don't develop technology in the span of the next 100 years enough to see beyond our current capabilities then human is doomed. honestly, I hate hearing excuses after trillions of dollars poured into this research about the search for another Earth-like planet that can support our civilization for other millennia factually, scientifically failed with zero evidence and we keep going with the lies and recalculating everything, there's gotta be another perspective how to preverse humanity rather looking for place to facilitate our greeds. @@Deeplycloseted435
@laurachapple6795
2 жыл бұрын
The last few years have left me so skeptical about the existence of life in the universe that I'm no longer sure *we* exist.
@bozomori2287
2 жыл бұрын
@Usagi Ninjin A sapient species would not speak english. It comes off as hilarious and dellusional when some wankers speak about sapience in english.
@lucyfyre6126
2 жыл бұрын
I find it difficult to believe that anyone with the slightest knowledge of cosmology could actually believe that all sun-like stars would have an earth-like planet in the goldilocks zone. I think this is a case of them intentionally fudging the odds to make it sound more appealing to the beancounters that decide if a project is worth funding.
@waspsandwich6548
2 жыл бұрын
The astronomical definition of an earthlike planet is very broad. Your assertion that the assumption these professionals who work on this as their job is unbelievable is just a little silly. I can understand how the idea might have been upscale for attention, but I doubt that the people who worked on this assumption were intentionally lying
@jamesvia389
2 жыл бұрын
Disappointing for sure, but Nature doesn't care whether we are disappointed or elated at what we discover. Nature has given us the aptitude and intelligence to find out her secrets so let's learn and apply that knowledge to move forward in our scientific quests no matter what we find. The answers are out there and ready to be discovered. Let's find out what is there.
@walidsaad2793
2 жыл бұрын
"Nature"
@stevencoardvenice
2 жыл бұрын
But Q will tell you that it's dangerous out there .you are about to move into areas of the galaxy containing wonders more incredible than you can possibly imagine - and terrors to freeze your soul
@Tim_Franklin
2 жыл бұрын
@@walidsaad2793 what's that supposed to mean?
@MagnusQuake
2 жыл бұрын
@@walidsaad2793 nature-aly!
@walidsaad2793
2 жыл бұрын
@@Tim_Franklin Idk , u give it a thought
@benmack4543
2 жыл бұрын
NASA is the most undervalued program in the US government. I will stand by that to my dying breath. I hate how the country is run which is why I want to be a politician right now. I hate how I am so powerless in whatever endeavours my government takes.
@YouCountSheep
2 жыл бұрын
From our own system I learned that formations of systems can wildly differ, and ours is pretty special because Jupiter raced to the sun, sucked up material which would have belonged to Mars then got pulled out by Saturn which in turn flung more water to the inner solar system. Maybe thats why we find more "superearths" 1.5+ times bigger than earth which had no material stolen, meaning they dont have gas giants that did what Saturn and Jupiter did here, and thus not much or no water at all. Kepler is just a children scope for what we need I guess.
@Drahko12
2 жыл бұрын
Addition to that Earth was hit by a proto planet that created the moon. I’m still wondering if that collision created plate tectonics and kickstart life here. Venus crust doesn’t have that and no moon. Is interesting to question the unique elements that created our planet and how it seems that we got very lucky
@YouCountSheep
2 жыл бұрын
@@Drahko12 Pretty sure the iron core is hotter because of the impact than other planets for sure, and tectonics seem to happen when the crust is thin and swimming on the core. Conservation of energy has to mean that the kinetic energy of that impact went somewhere, and it probably heated up our core, which is also providing our magnetic field. All in all alot of circumstances that make earth pretty unique. All that has to be happening to some degree in other systems to get equal base for life. Even all these microbiological things, oxygenation which almost wiped out all life ect. But maybe life isnt rare, but inevitable at some stage of compound chemical development of elements.
@Jayc5001
2 жыл бұрын
We have a lot more to learn. We need more data.
@caseykissinger9800
2 жыл бұрын
This is an excellent video. I have always been curious about the universe, and by watching your content I actually understand some of it now. 💯🤞
@spindoctor6385
2 жыл бұрын
You used a logical method to exclude the first of the 3 planets outside of the ratio stipulated to be an Earth like planet. Has any work been done to perhaps do the same with planets in a smaller otbit that may show similar gaps in the pattern and may then appear in the earth like ratio?
@pajaf0341
2 жыл бұрын
I like your way of thinking.
@CoolWorldsLab
2 жыл бұрын
I thought the same thing when I came across that. It’s less likely that an inner planet has the wrong period because there are so many more transits of course. As in you have to screw up really bad to get the wrong period with so much data! But it’s certainly possible I suppose, I just don’t know how likely.
@spindoctor6385
2 жыл бұрын
@@CoolWorldsLab I didn't think of that, That would drastically reduce the chances. Having 2 "missing" transits out of four would be rare enough. Four of eight seems highly unlikely but we would only need one candidate to get a good result. Is this data available to everyone? I will check them one by one myself. The data seems easy enough to interpret.
@carysmialek6746
2 жыл бұрын
Kepler should have been approved long before it was. It's mission was fundamental to our understanding of how unique Earth is. Unfortunately, it's gyros gave out just at it was able to establish the existence of longer period planets. We need to build on what we have learned and launch a more capable mission.
@bozomori2287
2 жыл бұрын
You need to pay rent
@234cheech
2 жыл бұрын
have blasted another telescope called james watt are so what mission are you wanting
@234cheech
2 жыл бұрын
waky f waky
@SarevokRegor
2 жыл бұрын
I believe TESS might be
@jesusramirezromo2037
2 жыл бұрын
@@234cheech James Webb is an Infrared Telescope, Not a photon detector, It won't be as good for finding Exo Planets, Just look at planets already found
@davidhand9721
2 жыл бұрын
So what I'm hearing is that we need to look at a hell of a lot more stars to get at a decent estimate of eta earth. Honestly I'm more optimistic about atmospheric spectrometry in the search for life. If we get hung up on Earth conditions, we risk overlooking other potentially more common forms of life and intelligence. Finding any planet with any gases significantly out of equilibrium would be a great day to open a bottle of champagne, not just O2 and CO2 in a narrow band of orbits and masses.
@ruary3243
2 жыл бұрын
I hear what your saying and agree, just mental to think about if they're intelligent and hostile.
@anonymous-rb2sr
2 жыл бұрын
yes, you seem to get it, and it's not like launching the infrastructure (satelite fleet) to do it would be prohibitedly expensive, just far beyond any space agency's budget, aka never gonna happen
@anonymous-rb2sr
2 жыл бұрын
@@ruary3243 if aliens exist and are intelligent and hostile (as they likely are) we just kill them by being more intelligent and more hostile than them, and if we fail to do that we kinda deserve our extermination by them very thankfully for humanity the galaxy seems pretty empty, and interstellar tavel quite impossible I mean just think about how desireable earth is, if intelligent spacefaring aliens existed we would all be killed the instant they learned of our existence, that's just pragmatism, and the assumption is that the aliens are intelligent
@tedski69
2 жыл бұрын
Assumptions are mother of all disappointments. Always wondered why the term "life" is included in all these papers and even videos instead of "life - as we know it". For all we know our type of life could be very rare indeed and the galaxy is littered with other (more common) types of life that are far, far more common. It's a little like saying Earth wasn't particular special because all solar systems (that had planets) would be nice and neat with rocky Worlds on the inside system and gas giants towards the outer system. We have made soooo many incorrect assumptions in astronomy.
@Gary-Seven-and-Isis-in-1968
2 жыл бұрын
To discover a proto Earth where life did not begin would give us the possibility of seeding it with life from our own world.
@jettmthebluedragon
2 жыл бұрын
I agree 😐after all life in the universe is rare because it takes a certain amount of things for earth to happen now you could say we are the only planet to have carbon life and that may be true how 😐it took the right time of weathering and erosion 😐in fact even before this planet ever formed their is no telling that we were most likely dead 😑it’s all about the brain 😐before we came into this world we had no brain and when we die our brain will dissolve into nothing yet again 😑could another earth form again?😐maybe not😓however maybe just maybe 😐their is a possibility after all their is something I have learned about and that would be for something to truly be dead is do something to not exist in the first place 😑this goes for the universe earth whatever it may take a very long time 😓but Beacuse we are here it feels as if it was yesterday 😐also another thing nature can’t produce what is not possible 😑if it’s impossible that means it’s 0 and yet everything on earth from the past present and future has potential to live again 😐 to get to ware we are today it will take eons 😓and we see the world from first person point of view even before we were ever born 😐and even in death the universe may not be for us 😐but this planet is and maybe Beacuse everyone and everything you see lives their is a possibility we can and just might live again 🙂but with nature nature makes no promises 😑saying we even live in the first place could make scientists scratch their heads 😏 after all they say the chances of this earth are basically 0 that may be 😐however somehow we are living today 🙂if the earth did not ever form we would most likely be all ready be dead long ago 😓even before this planet ever formed in the first place 😐all that science wants is proof why don’t we see any earths ?😓why ware all they ?😐well for one you not going to get a full copy of the earth what it looks like now 😑and also earth was not always like this 😐the way we see it it took eons it took billions of years also when we say something is dead or extinct all that means is they dont exist anymore however they did before and one day humans and this planet will be extinct meaning we will dead 😐however….that does not mean they can’t evolve again 😐after all we all are the cosmos everything past present and future everything you see has the ability to live and evolve again 😐it may seem impossible but truth is we are the impossible 😑✊
@gandalfgreyhame3425
2 жыл бұрын
Excellent. Addressed something I had been wondering about everytime I read another media report about the discovery of exoplanets in the "goldilocks zone" None of them seemed to be around true sunlike stars, most were around red dwarves or other hostile stars.
@sciencerscientifico310
2 жыл бұрын
Dwarf stars are not necessarily more hostile than sun-like stars. Sure they tend to be prone to extremely frequent flares when they're young, but as the stars age, these flares become less and less frequent. The largest constraint when it comes to red dwarf planetary habitability is the habitable zones of these stars are so close in that the planets are more likely to be tidal locked. Tidal locking probably prevents a planet from having a magnetic field, as magnetic fields are produced by the rotation of planetary cores.
@gandalfgreyhame3425
2 жыл бұрын
@@sciencerscientifico310 Millions if not billions of years of these intense solar flares will almost certainly strip away the atmosphere and most of the surface water of the exoplanets, especially the ones that are so close to the red dwarf in the "habitable" zone. This will happen whether there is a magnetic field or not (magnetic fields can only protect so much against constant giant flares from a nearby star) and well before the red dwarves settle down in their old age. That is the main reason I see red dwarves as hostile stars unlikely to harbor the conditions for habitable earthlike exoplanets. The tidal locking, loss of magnetic field, etc., only add to the likelihood of additional hostile conditions on these exoplanets.
@bobpeters61
2 жыл бұрын
An "Earth like" planet would pose serious ethical questions in terms of colonization. Science has established that life played a vital role in transforming the Earth's environment from one hostile to our life forms into one in which we could have evolved. Therefore, it is safe to assume that an exoplanet with a truly "Earth like" environment would already belong to life already there.
@briandufty5081
2 жыл бұрын
It's not yours. It's not mine. How can you take possession..
@stevenscott2136
2 жыл бұрын
I doubt you could convince people that a nice Earthlike planet should be off-limits just because it has non-sapient animals. Plenty of people want to start over (or think they do -- colonizing is WORK), plenty of people want rid of each other, governments and companies want to expand.
@arthurduncan5838
2 жыл бұрын
Manifest Destiny 2.0
@ShadowTheHedgehogCZ
2 жыл бұрын
9:35 - I see this as the most important bottleneck. We can only discover planets in system where the orientation allows for the planets to eclipse the star. And it's 1 in 200? That means that for every single planet we observed, we discarded 199 without even looking! And then we make the bold assumption that Earth like planets are so rare they are virtually non existent. Despite we base that assumption on 0.5% of data. 0.5% of data from our local vicinity, not even the complete data.
@anonymous-rb2sr
2 жыл бұрын
in the concept of doing this with the goal of a general survey/gaining statistical knowledge in mind I really don't see that as an issue, if you care about the % of each type of planet near us in the galaxy, then even if the method only shows you 1/200 (more like 1/800 or 1/4000 let's be somewhat realistic) of planets, GIVEN that you have a system that gives you a good statistical sampling withing that 1 in 200, then you can just multiply the numbers by 200 and get a fairly accurate idea of what the actual statistical spread is but the issue is that we are laughably far from doing that, and even estimating what % of planets are visible through the transit method is far beyond our grasp, so we don't even know what number we would need to mulitply the data WE DON'T HAVE by to get a correct result (it doesnt just have to line up, it has to be looked at within the few hours the transit lasts by the telescope, so in reality you only see one in hundreds of thousands with one space telescope)
@EventHorizon31
2 жыл бұрын
@@anonymous-rb2sr This gives me some hope.
@Cannabian
2 жыл бұрын
This is why I love this channel, I would of probably gone of for years thinking Kepler detected several earth sized planets in the habitable zone. Thanks for all the hard work!
@CoolWorldsLab
2 жыл бұрын
Thanks! Remember that our video here uses Borucki’s Earth proxy zone and not the habitable zone which is subject to considerable debate and is generally wider
@Cannabian
2 жыл бұрын
@@CoolWorldsLab @Cool Worlds thanks for the correction, I conflated two things there.
@beardedzeus1337
2 жыл бұрын
How beautiful to include Galadriel speaking to the Fellowship to give an analog to our quest to find Earth likes. Your videos are always so highly produced and you manage to give some fairly intense emotions through your choice of music.
@billybaloney7769
2 жыл бұрын
Regardless of Keplar not finding a plethora of earth-like planets, the push of technology to improve the detection process was worth finding 1000 habitable zone planets. Maybe someone could start a crowd source fund to push the Luvoir project
@midgarw6775
Жыл бұрын
I hate how we easily spend billions on tools that cause Human extinction but far less eager to spend the billions on tools for Human enlightenment.
@A.D.540
5 ай бұрын
U not the only 1 trust me 😢
@pqlfn
5 ай бұрын
the problem is, we would spend money to enlighten ourselves, but do you know why we dont? because the chinese will come knocking on our door wondering why are we sending cameras in space instead of cultivating their grains, instead of washing their dishes and sweeping their floors
@MiddlePath007
3 ай бұрын
No but seriously, what are we spending on to extinguish us? Seriously
@Fantax92
Жыл бұрын
There's no shame in failing. Try and try again. Turn your failures into discovery. I'm amazed how far science has came and keeps going. Thank you to all our past, current and future scientists
@bernardsmith1329
2 жыл бұрын
I realise I may have missed some content of your excellent cool worlds series, but have you yet touched on the 'Faint young sun paradox'? If this theory is correct it may well reduce Earthlike candidates to a really, really small number. If I haven't missed anything, perhaps we could hear your thoughts on this paradox? Thanks for this brilliant series and stay curious!
@Leyrann
2 жыл бұрын
I'm curious what you mean by that exactly? I thought the faint young sun paradox, which to my (admittedly limited) knowledge says that the young sun should have been too faint to allow for liquid water on the surface of the earth, was resolved by the earth's old atmosphere (with CO2 and methane) providing a significantly stronger greenhouse effect; and in fact it was only life that changed our atmosphere, and is still doing so, as molecular oxygen isn't actually a long-term stable compound in an atmosphere.
@bigedslobotomy
2 жыл бұрын
This video adds a good bit of skepticism to the science of exobiology. Too many people have integrated the Star Trek and Star Wars “intelligent life is common” theme into their view of life around other stars. Science should always be skeptical until it is proven.
@sciencerscientifico310
2 жыл бұрын
The bigger sizes of these "Earthlike" planets automatically precludes them from being truly like Earth, even if some of them are liveable for carbon-based water dependent organisms. The major difference is the high gravity of these worlds, twice the strength of earth's gravity on average, that would lead to changes in the physical makeup of the planet.
@cristianm7097
2 жыл бұрын
Imagine intelligent beings with strong bones and muscles that were also able to escape that gravity in spaceships and land on Earth.
@WitchMedusa
2 жыл бұрын
I'm blown away by the quality & level of effort put into these videos, this is amazing!
@zunaidchowdhowry8554
2 жыл бұрын
This makes me appreciate earth more than anything How special is our blue little drop of life in the sea of nothingness We should do our best to protect earth 🌎
@harmonyx_official
2 жыл бұрын
Hi David! How would you advise someone who is very interested in astrophysics to pursue it? I’m currently a sophomore studying finance but i have a deep passion for astronomy and physics. Love how much work you put into your videos as it’s very rare to see these days!
@winterramos4527
2 жыл бұрын
Just go for it Justin
@tankej
2 жыл бұрын
Let's celebrate Kepler by doing it right. I completely agree. Luvoir etc. should be postponed until we have more informed expectations. Those price tags are ridiculous if there's any chance for failure.
@AdmiralBob
2 жыл бұрын
Also I'm not too interested in cost cutting the mission. Buy once cry once.
@anonymous-rb2sr
2 жыл бұрын
we already know everything there is to know about the odds, you just won't hear them often from a mix of lies and ignorance, the bottom line is that doing what Kepler was meant to do is fully possible and fully within humanity's current budget, but it would mean having a final detection ratio many orders of magnitude over what kepler was capable of Either have telescopes 2-3 orders of magnitude better than kepler in 1-2 orders of magnitude greater numbers, or any variation of quality and quantity with those orders of magnitude I don't think I need to tell you how that doesnt quite fit into nasa's budget
@Ryan-nd3gr
2 жыл бұрын
I didnt hear any mention of the importance of our moon. Also, a lot of the presentations about life on other earth like planets seem to come up with a high percentage of tidally locked bodies. With the amount of random chance involved in our own development, what are the chances that life could reach sentience on a planet that is half frozen, half scorching? Or if the wobble was so great that it sent the oceans washing across most of the land in what might be like constant tsunamis? It makes me think about Ray Bradbury's "frost and fire"
@kalanivernon7273
Жыл бұрын
Given the difficulty of detecting moon's in our own Solar system, and the overall difficulty of detecting even Super-Earth's in other solar systems - detecting a moon that itself couldn't be classified as a planet is beyond our current technology. Even then, I don't recall us detecting even a single exo-moon as of yet (how exactly would we be able to separate a moon from its parent planet using the transit method is beyond me).
@Beardedgumby
2 жыл бұрын
I just recently found this channel... yesterday... I've watched a about 15 videos already. Love the voice very calming.
@amandahugginkiss55
2 жыл бұрын
My favorite video of this channel is the one about beatlejuice getting dimmer. Dr kippling does such an amazing job of teaching without being condescending. So glad you enjoy it like I do!
@frankfowlkes7872
2 жыл бұрын
If another civilization several hundred light years from Earth ran this same experiment would they not find two planets around our sun (Earth and Venus) and possibly a third Mars (though too small) ? Maybe a Solar System like ours is rare. While I still think we are probably very rare and very lucky I think the jury is still out on Earth like planets.
@Comradez
2 жыл бұрын
Only if our solar system's orbital plane happened to be in line with them. There's like a 199/200 chance that they'd look at our sun and conclude, "What a nice, quiet main sequence star with a constant output! Such a pity there aren't any terrestrial planets around it..."
@qzbnyv
2 жыл бұрын
Watching again 3 months later and feeling just as grateful as the first time to be living in an age where I can watch quality video productions like this about the actual science behind those news snippets.
@ShatteredWindowpane
2 жыл бұрын
Your channel provides a great source of inspiration to people like me who love learning about this stuff. Keep up the great work
@anonymous-rb2sr
2 жыл бұрын
His channel is great but considering he works for NASA he should be spending his effort lobbying for multiplying it's budget by a number several digits long rather than make youtube videos The videos are nice sure, but with NASA's whole "slow trickle" "no redundancy" policy, scientific discoveries are more of a probabilistic event rather than something progressing at a normal pace, he might run out of things to talk about 😂
@sekou777
2 жыл бұрын
We are not even supposed to be. The reality is that mankind is the greatest experiment ever conducted on earth.
@dustinking2965
2 жыл бұрын
It's a bit mindblowing that we still don't know for sure if there are any other earth-sized habitable-zone planets around Sun-like stars. There have to be some somewhere, right? But our system is weird: no super-earth, quiet star, more phosphorous than usual, large moon. Maybe we don't hear any aliens because the conditions for life and civilization are much rarer than we would have guessed.
@Cyberpuppy63
2 жыл бұрын
Super - Earth's are not the answer. The gleisse system, for example, seems to very little water. It's not known (as of yet) if any of the planets have moons; which might be a large pre-requisite for a stable (long term) biome.
Bro, there is a mighty elephant in the room and the fact you’re here probably means you know what I mean. EBE’s are well known to Humanity.
@dustinking2965
2 жыл бұрын
@@channelbree I'm not aware of any credible evidence of "extraterrestrial biological entities". I think if we did have that, SETI research wouldn't be woefully underfunded.
@LS-us1jm
2 жыл бұрын
Everyone’s out here saying that aliens definitely have to exist but I’ve always thought that alien life is so much rarer than we think because the fact that we humans are here is out of pure chance. The number of events and changed our planet had to undergo to eventually house us is mind blowing and so rare
@jmundale
2 жыл бұрын
i really loved this video, i think one of your best. I got a completely different perspective on Kepler than one I had been picking up in major medial outlets. Thanks for such an in depth, nuanced explanation.
@CoolWorldsLab
2 жыл бұрын
Thanks Jack, it was a lot of work so I sincerely appreciate your comment!
@gutz-Coldrevenge
2 жыл бұрын
i find it amazing watching a video like this, knowing that the Kepler program is i believe one of the things that gamers helped process, in a game i played years ago called Eve Online, there was a "mini-game" that was called Project Discovery, in the part i took part in was dealing with Transits, categorizing them, and trying to figure out what size and distance the transiting object was from its parent star.
@DMTrance87
Жыл бұрын
Just found this channel... You, sir, are the Carl Sagan of this generation. Keep being awesome. I love the way you make my mind think when I watch/listen to your videos. You're doing the gods work here😋
@Quickshot0
2 жыл бұрын
I guess one can perhaps but hope that a new launch vehicle like Starship will drag launch costs down so much, that a more mass heavy, more simple engineered telescope can be launched affordably instead. In that case one could perhaps have a some what larger telescope with out breaking NASA's budget.
@viorelush4187
2 жыл бұрын
I don't know if you will read this, but I love your work! First of all, I'm obsessed with Pluto and I'm dying to see more pictures of it, but no one talks about JWST's capabilities regarding this subject. The fact that you showed that graph at 5:33 gave me hope. You look amazing, too! At the end of the day, you are the best version of what I want to become. Please, don't stop this wonderful journey! Have a wonderful Christmas/New Year! -- A devoted fan to your channel
@CoolWorldsLab
2 жыл бұрын
Oh yeah should be some great images of many Solar System objects with JWST. I’m personally excited for Europa.
@বিশ্বেরকিছুঅজানাখবর
2 жыл бұрын
'Cool Worlds' - is undoubtedly, the Most Beautiful Channel in the KZitem !! Excellent explanation, and amazing presentation..!! All the BEST Professor..!! Looking for more like this one..!!
@stevencoardvenice
2 жыл бұрын
"...We know that we are approaching the grandest of mysteries..... "The size, and scale, of the Cosmos..... is beyond human comprehension.." You're a great writer dr. Kipping. And sagan was a GENIUS. I wish he were still alive
@abloogywoogywoo
2 жыл бұрын
It has to do with Hot Jupiters. We don't understand why, but around G class stars, these gas giants tend to migrate inwards, wrecking the inner exosolar system before it can even get established. Either way, I think we're dealing with a Rare Earth Hypothesis here.
@metroidprime3863
2 жыл бұрын
I miss Interstellar sounds track in the background of these awesome videos.
@lazyishardwork
2 жыл бұрын
19th of Feb 2009. 5 weeks before my eldest son was born, 7 1/2 months before a very very close ex gf of mine killed herself. Even if we never can time travel, if we could just make clear and accurate predictions. It's funny how we measure stages of our lives with certain years and dates. If you can escape such intellectually absorbing events to have the mental space to contemplate such detailed scientific endeavours with such lucid clarity, you truly are privileged.
@hristokaishev4665
2 жыл бұрын
Always amazing content! Thank you!
@Chris.Davies
2 жыл бұрын
Another pie in the face to the idea of always assuming we are a typical case. We aren't.
@Lyarrah
2 жыл бұрын
If I'm honest? It's wild to me that "assuming every star has an earthlike planet" was treated as a reasonable starting point for the numbers. Fantastically presented though.
@jonniefagan4479
2 жыл бұрын
Please make a podcast to supplement these videos. I could listen to each and every topic for hours - watching these videos outside, on a clear night, provides me with an utmost sense of wonder and excite me as to the information that every whispering starlight flicker holds.
@randar1969
2 жыл бұрын
Despite what some people think if there was an exact copy of Earth in orbit around the closest star next to our sun....We couldn't detect it. Not even their radio waves. Our technology can't pick up signals so weak as we send out even over 'only' 4.3 lightyears. Seti needs a signal that is hundreds or more times more powerfull than we can produce with our technology to pick something up.
@anonymous-rb2sr
2 жыл бұрын
yep, daily reminder that there are currentky massive debates about wether or not there is a massive PLANET inside our solar system, in the heliosphere, orbiting the sun At least I'd say with proxima you'd get better detection chance since you at least know where to point, and a purposed built instrument cold probably be invented to find one around proxima (some sort of coronagraph type thingy) at least the planetary probes and landers arents a complete waste of time
@harddrive5
2 жыл бұрын
This channel is incredibly informative, visually stunning, but also very sad at the same time.
@doodelay
2 жыл бұрын
I think im like most people on this where we don't really care if the planet found is almost our size, almost our temperature, and with a star like our own. They can differ. The point isn't to find another rock out there like ours, it's about whether we're really finding potentially habitable worlds. And, you do not need such a strict similarity to be habitable. Nevertheless, still beautiful investigation and I hope there's more to come.
@electromadness5348
2 жыл бұрын
Exactly man. You get it. For example aliens may not have the need to breathe oxygen and may do something else instead.. And they probably can live in different temperatures than us
@southpakrules
2 жыл бұрын
Since we have absolutely no idea how, when, where and if alien life different than ours exist, how can we set the parameters of our present technology in order to detect them thousand of light years away? But we do know we have life here, under the circumstances of our solar system which has produced us. So it's the safest bet towards the first step to discover proven life to seek these signs.
@danielleriley2796
2 жыл бұрын
I’m watching this 8 months after is release. Webb launched, didn’t blow up, it didn’t get lost on the way, it unfolded perfectly and it cooled right down. We are days away from the first science and public release images. So it’s exciting to look back on Kepler and see how it did while living in the excitement bubble of Webb. On a purely unimportant note, Webb looks magnificent and full of purpose while Kepler looks industrial. However they only have to preform within design specs for the design life. Looks means nothing to mission success.
@billymania11
2 жыл бұрын
I do subscribe to the thought that intelligent life is very rare in the cosmos. This makes our existence very special and unique. Up to this point, we were always told that our planet and humans were not the center of the universe and we ourselves are not very special. Funny how things turn out isn't it?
@MaloPiloto
2 жыл бұрын
Well said, Billy! Very ironic….
@SubvertTheState
2 жыл бұрын
"All the science geeks are excited about this one, Earth's twin" -fetches my list of 'pros' of why to continue existing-
@johanjonsson6504
2 жыл бұрын
This channel deserves more subscribers!
@brucemacmillan7128
2 жыл бұрын
Even if we find an earth analogue, that doesn't mean there's necessarily a profusion of life on said planet. And if there is life, it might be no more than microbial in nature. In any event, any star that might have such a planet is beyond our reach.
@njm3211
2 жыл бұрын
Fantastic video as usual. Disabused me of my already diminished optimism for earthlike planets. A Kepler 2.0 would be helpful, improving the proven technology and perhaps the size of the optics. JWST doesn't have too many exciting exoplanet targets for study at least earthlike ones.
@zimriel
2 жыл бұрын
55 Cancri excites me, although you are right, no earths over there.
@davidconlee2196
Ай бұрын
One of my favorite things is listening to four different news casts at the same time.
@MrRawnerves
Жыл бұрын
Listen, we already spent 100 billion in the Ukraine war in less than a year. To build a 15 meter telescope is a bargain. Not to mentioned the loss of life which is priceless.
@timjohnson6278
2 жыл бұрын
Didn’t Kepler’s loss of 2 reaction wheels inhibit its ability to find earth like planets?
@gregorybehm8558
2 жыл бұрын
Love the videos. I can't thank you enough for making these. The graphics are incredible, and information is amazing to watch/listen.
@danielleriley2796
2 жыл бұрын
What I got out of this is that lower mass stars have more noise and an earth like transit is 80 ppm. So for the star type we want an earth around the transit variation is smaller than the noise. Therefore transit method might not be a very good method for earth detections around small stars.
@fireofenergy
2 жыл бұрын
Could a bunch of "smaller" scopes, that _fit in one piece, each, within Starships_ be used once they are successful in lowering the launch costs down dramatically, as a really large interferometer the size of Earth's (or Mars) orbit?
@Republican_Extremest
2 жыл бұрын
Depends on how low Elon Musk can bring down the costs per launch
@fireofenergy
2 жыл бұрын
@@Republican_Extremest SpaceX already lowered the costs dramatically, albeit, the larger dia Starship isn't ready to fly, yet. Smaller scopes could fit, though.
@dsdy1205
2 жыл бұрын
Interferometry depends greatly on accurate measurements of the relative positions of each receiver down to sub wavelength distances. For radio waves this is easy, wavelengths are on the order of meters, so a GPS receiver can easily get sub-wavelength position data. For visible light as is needed for exoplanet discovery, you're talking about sub-nanometer precision, made worse by the fact that you're trying to position orbital satellites. The ability to do this is still a very very long way off
@tylerdurden3722
Жыл бұрын
@@dsdy1205 aren't they already doing this at infrared wavelengths with telescopes on earth?
@dsdy1205
Жыл бұрын
@@tylerdurden3722 they are doing this at radio wavelengths on earth. Radio waves are meters long and easy to work with. Also, the Earth is mostly rigid, which makes positioning and wavefront analysis way easier. I only know of one optical telescope that does this, and that's the Very Large Telescope. It needs a wide array of very VERY fine-tuned optical 'pipes' to funnel the light from 4 different apertures onto one receiver, with all the wavefronts landing within 0.1 wavelengths of each other. Not by any means a trivial task, and that's considering they're securely bolted down onto a Chilean mountainside.
@ixeroi
2 жыл бұрын
I absolutely LOVE this channel! Every video I watch, I feel just little bit more intelligent than before absorbing all this information. Also, your narration voice is very appealing to me, almost trace inducing. Keep up the good work sir, you are a definite necessity in my search for knowledge!
@jamesgeary4294
2 жыл бұрын
Had we known how noisy stars are on average, what could have been changed about Kepler's design to compensate? If it had a larger mirror, would that have made a difference?
@MK-ge2mh
2 жыл бұрын
Yes, it would have improved the signal. But given how exponentially large astronomical distances and really any values are, you'd need an exponentially larger size mirror. You would still wind up with the same results, but applied to different stars. These two stars probably would've never been considered plausible, but two different stars father away would be in the same situation we have here. The likelihood of finding anything real is so small and the distances so large, your question would be asked no matter how large of a telescope. That's just my opinion.
@diGritz1
2 жыл бұрын
@@MK-ge2mh Changing a design on something like this is dam near impossible. It's due to the extended development time. If you have a decade long design and build stage, and your 5 years in, a change in the mirror means, at the very least, a partial redesign. This also means cost and time overruns. It's why you see tech from 10 or more years in the past on a project completed in 2021. Granted there are exceptions to this.
@MK-ge2mh
2 жыл бұрын
@@diGritz1 Agreed. But that has nothing to do with the original question. To your point, the reason you see old technology isn't just because of the design and test time. It's because the technology is the most proven and reliable at the time. You can never risk any part of the mission on something new even at the beginning of designing. It's going to be old by then as well.
@anonymous-rb2sr
2 жыл бұрын
it needs to be hundreds or tens of thousands of time better than what it is to give us hundreds of earth like exoplanets there's no getting around it (I would say a cut off for a certain distance and then of course several identical telescopes for a larger cover of the sky would be the logical limit for the improvement of the machine itself)
@anonymous-rb2sr
2 жыл бұрын
@@MK-ge2mh I mean sure if you only launch one then woWoWWWwooo can't risk anything woooOOOOoOo and STILL a material failure within 4 years, apparently nasa has decided that the most sensible position to take on the eternal quantity vs quality debate is to never make more than one of anything I mean even with the space shuttles that argument is still hugely valid, 2 blew up, but imagine if they only had one, how many fewer flights they could have made, and the fact the shuttle would have ended at the date of the first accident but apparently decisions are made by monkeys who think that having no redundancy ever is somehow cost efficient, go figure btw maybe by 2080 nasa can figure out adding windshield wipers to the solar pannels of it's rovers so that they don't all die after 1 year from having their solar pannels covered in dust, like the last 15 missions where this exact same thing happened, a man can dream
@jasonolinger7585
2 жыл бұрын
Imagine if there was a planet out there that is populated with humans and just as evolved as we are on earth out there? What a crazy but interesting thought.
@maltheopia
Жыл бұрын
Would depend why. If it's a case of convergent evolution that would be somewhat disappointing. It'd be more exciting if there was a guiding intelligence, I think.
@Cruelaid
2 жыл бұрын
Cool Worlds makes my millennium ❤️
@nocturnalsimulacrum6385
Ай бұрын
Oh! I love when he starts narrating in that grave forelorn tone. I always picture him burning toast or something and then going into a monolog "why? Didnt i set the timer shorter?why was the heating element so energized?" 😂😂
@ridetillidie8090
2 жыл бұрын
Just remember folks: Kepler searched 10 sq degrees of space. That leaves 41,800+ degrees yet to be scoured. Hope springs eternal!
@CoolWorldsLab
2 жыл бұрын
Absolutely, Kepler leaves plenty of space for hope because ultimately it didn’t really deliver a clear answer
@matthewyabsley
2 жыл бұрын
@@CoolWorldsLab - It did. But not to that question. It showed we can learn knowledge in this manner, that we can build a science that didn't require the brilliance of just one exceptional scientist. It established a framework and paved the way to answer one question; Is it possible to find what we want with this method. And that answer was yes and that we need more of it. :-)
@anonymous-rb2sr
2 жыл бұрын
truly a well planned mission fully within the means of the agency 😂 also you're wrong by a factor of ten but who cares ten times 0 is still 0
@anonymous-rb2sr
2 жыл бұрын
@@CoolWorldsLab the reasonable thing would be to accept the status of the Kepler mission as a failure and focussing the efforts of the scientific community on a salvage operation that could yield way more value for the future of this research than it's mission statement ever could, that being the salvage of the technical details discovered along the way of it's conception construction and testing, as well as the proper analisis of this data into a useable form for any future team endeavouring on a similar project In short and if it isn't clear my argument is that considering the appaulingly low budget of NASA, doing what Kepler was supposed to do is complete lunacy (and the guys who made the calculation for 43 earth like planets knew that, just look at the parameters they chose for their estimation), but that being said, the knowledge in R&D associated with the Kepler space telescope has far more value than the near useless data Kepler collected All the things the people who built Kepler learned while buuilding it won't need to be done all over again, given that this knowledge is properly recovered, treated and organised, while Kepler's planetary dataset will be made completely outdated by even a tiny marginal improvement on a Kepler 2.0
@geologist_luna
Жыл бұрын
As a geochemist, using ICP technology, dealing with background noise with detections of 8x BN (background noise), this whole video really spoke to me. Great video, very well described.
@xdmztryvsvedine2773
2 жыл бұрын
Glad I found this channel. One of my dreams that I know is impossible to achieve in my lifetime (and maybe forever, who knows 🤷♂️) , is to travel space and explore and discover new planets and life in other solar systems. But that’s like Star Wars / Star Trek level tech.
@andreasfehlau4965
Жыл бұрын
We mustn't forget, Kapler could only look at one angle of planetary orbiting. But for me the Kapler Orrery was just another puzzle piece for the 5th dimension.
@JosephLukeHall
2 жыл бұрын
Perfect quote from Lord of the rings. Unfortunately it looks like Eta-Earth was unconstrained by Kepler due to stellar noise, so it didn't really help constrain the Luvoir design. Neglecting to constrain stellar noise with Hubble before paying for Kepler seems like an expensive booboo. Luvoir might not be constrained by the 1 in 200 orbital geometry issue so Nasa could roll the dice and go with the smaller telescope. But you're right we'll only get one shot at this in our lifetimes. Lets get it right. This video and a previous excellent video on confirmation bias makes me think of another scientific issue: the demonstration of human caused global warming. To accurately measure change of 0.1C you'd require an accuracy of measuring Earth's temperature of around 0.01C. Just in a day temperature swings 20 to 30 F. Between summer and winter here in NY temperature can swing from -20 to 100F. Plus given that we don't measure everywhere, we don't adequately account for temperature under the ocean, don't account adequately for energy stored in evaporated water, I think the signal you're looking for is below the noise floor. I've never seen an error analysis that says you can accurately measure 0.1C change. The media hype and the lack of considering alternative explanations of North Polar ice melt seems to me like confirmation bias. The South pole doesn't melt at anywhere near the same rate. Why? It's probably outside Cool world's charter, but it would be nice if you could do a video demonstrating where the expected noise floor is for a measurement of Earth's temperature. Or if you could refer me to one. Keep up the good work. Your videos are awesome. Thanks.
@CoolWorldsLab
2 жыл бұрын
Thanks for the kind words. Gavin Schmidt, a friend and director of NASA’s GISS office explained how they measure Earths temperature years ago on the channel (kzitem.info/news/bejne/zqGKnX2vjoWbpGU). The measurements are good to within 0.1oC and that’s actually evident from the data itself because there’s many year-to-year measurements that are consistent within that range. There’s a longer term trend on top of that showing a clear one degree rise. You actually don’t even need 0.1 precision to obtain that though as the error on a linear slope scales as typical precision/sqrt(# of measurements) all divided by the baseline of observations. So you could measure it to one degree precision and still confidently detect the trend. I hope that makes sense, it’s all about the power of multiple statistics here. Check out data.giss.nasa.gov/gistemp/ for data you can download yourself and many great figures.
@AvalosTokyo
4 ай бұрын
I can't recall when or how old I was, but when I first heard about exo planets it felt like sci fi, like Star Wars was real. Then it found the planet orbiting 2 suns like Star Wars. Then the hoard of hot jupiters, and more importantly, how younger and fast the start systems found are compared to the cool and slow solar system we live in. I read into the Albedo and wobble methods of finding these, and other rudimentary work that blew my mind. Thinking about it now, our entire understanding the stars changed completely within my lifetime.
@skagate
2 жыл бұрын
Thank you! The CoolWorlds videos are so amazing, I get the chills watching these. I am wondering if you think an array of a number of telescopes working in concert could be cheaper than trying to go for just one large mirror? Would that kind of system get the resolution and data that you need to make better observations about the exoplanets?
@marcomattano3705
2 жыл бұрын
Or maybe a fleet of "Terrascopes" strategically positioned in order to maximize the lines of sight of possible Earth like exoplanets would be even better. Build one and use SpaceX production unit line like in order to guild and launch them.
@salgarellius7434
2 жыл бұрын
Why is it so expensive to build the 50 m telescope? Can't we make it cheaper? Can't we progress the field, machinery and material science to cheaper the process?
@Electru522
2 жыл бұрын
Can we all simply agree that NASA needs more funding?
@QuicksilverSG
Жыл бұрын
Realistically, there are only around 60,000 stars within 100 light years of Earth. Anything that happens outside that radius won't even be visible to us for another century. That number is small enough for astronomers to conduct a thorough evaluation of each of those stars in a reasonable amount of time. Once that research is complete, we'll be in a position to conclude that we won't likely encounter any Earth-like planets in the next century.
@gingertoast6216
2 жыл бұрын
I'm just going to say if america put money on space exploration instead of spending 700-800b$ each year on defense, like a total of over 2 trillion on afghan war in 2 decades and still end up losing it, 20b$ space telescope could be easily built then just imagine the possibilities.
@cipriandanila4589
2 жыл бұрын
Thanks for all yours job. The sadness of the end is just because the our day's science is limited, but dreams are unlimited.
@sync4995
2 жыл бұрын
Great video, going to watch it twice like always so my brain soaks it in fully 😂
@jjt1881
2 жыл бұрын
Rigor and honesty are the cornerstones of science, especially if they lead to conclusions that we didn't expect or wanted to reach.
@KingBritish
2 жыл бұрын
Now I've got something to watch 👍🏻
@CoolWorldsLab
2 жыл бұрын
👍
@angelrivera2339
2 жыл бұрын
funny thing about people, they always assume that they have enough data to predict what is possible... I personally think that Earth like worlds are rare, but habitable worlds are probably not rare. There are could be many worlds that have life and we could adapt to live on.
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