This episode was a real treat for me. The Hubble made the 90's super exciting. I followed along by reading the Health and Science section of the Boston Globe on my subway commute. It made us rethink our understanding of the Universe many times and it's a real thrill to hear from one of the main people who was behind this work. Thank you. The single biggest jaw dropping moment of my life was the day the first Hubble Deep Space photo was published. I think my jaw was on the floor the whole day, couldn't even focus on anything else. It was just so mind blowing to learn there were that many other galaxies. I loved following along as the science community tweaked and refined our understanding of it all. I was fully expecting JWST to find early galaxies more mature than expected because that's the same thing the Hubble found. Just further with JWST. Now we're learning it's closer to 2 to 4 trillion galaxies in the observable Universe. Awesome. Thanks again for doing what you do. We love it!
@Goodjobeveryone
Жыл бұрын
My day gets brighter and my mind finds new questions each and every time I see there’s a new StarTalk!
@ginamcdonald7854
Жыл бұрын
I did not want this episode to end. This is so interesting, and I learn so much every time I watch StarTalk!
@ywfbi
Жыл бұрын
Absolutely love the part of the discussion regarding uncertainties and testing the measurements. IMHO Wendy really spoke to the real progress of science today. Fantastic show :)
@CharlieKellyEsq
Жыл бұрын
mmmm I love wendy's Their spicy chicken nuggets are amazing
@bharfbattlebrain7892
Жыл бұрын
I love it. All the questions that I had were answered, along with several others, though it's left me with questions I've never thought of before, but that'll be sorted in future installments no doubt. And the beauty of it is, I can enjoy learning about this wonderful universe that we live without worrying about having to take any exams.
@michaelccopelandsr7120
Жыл бұрын
Neil and Chuck for 2024
@jasminyala3231
Жыл бұрын
Lol This matt take the micky with chuck,, 0:19 about he chucking on
@21stcenturyscots
Жыл бұрын
I am not so sure about Chuck.
@michael-4k4000
Жыл бұрын
Trump and Neil 2024!
@michaelallen2971
Жыл бұрын
Damn that
@raya.p.l5919
Жыл бұрын
❤ warning negative energy will creep out yr feet tell it's time for Jesus energy wash😊😊
@harshsharma7154
Жыл бұрын
Love every episode of startalk just as i love every star in the universe!
@mattdenihan5653
Жыл бұрын
Hey Neil / Chuck just wanted to say thanks for everything you do, I love being able to watch/ listen every day to startalk! I love being able to learn a little more everyday about the universe and everything within.
@MisterSixty
Жыл бұрын
Relatively speaking, time passed by so quickly watching this episode! Thank you, Professors and Hosts 👍🏼👍🏼👍🏼👍🏼👍🏼
@alansilverman8500
Жыл бұрын
Please do a segment with Wendy delving into her research using the Webb to measure the Hubble constant with Red Giant Branch Tip Stars as opposed to Cepheid Variables which you haven't covered here in more detail...
@XxTheAwokenOnexX
Жыл бұрын
At last, iam finally the first person to like a StarTalk video 👍
@Unkl_Bob
Жыл бұрын
Good for you !! The first person to ever like a StarTalk video. they should send you to Mars !!! I watch it for the information
Holey Eternal Omnipresent Greetingz cuzinz and Earthlingz
@XxTheAwokenOnexX
Жыл бұрын
@@Unkl_Bob Thankyou, i have no interest going to Mars, as it is not far enough away from earth 😂
@manny011
Жыл бұрын
Not the response I personally wanted to hear from Dr. Freedman regarding the big rip but I respect her even more for feeling the way she does about it. Great show and great guest yet again. ☄️🔭
@Brian-uy2tj
Жыл бұрын
There is, as there should be, constant reference to the Hubble telescope and the JWST but they never remember to mention the engineers who designed these two marvels of scientific equipment. You are amazed at what you see, but........ in addition to that, I am amazed at the engineers who figured out how to make that happen. Truly amazing stuff!
@kellinrogers1575
Жыл бұрын
Dr. Tyson, my 11 year old wants to be a theoretical physicist. Where do I start? What resources are available for a kid who is already talking about Einstein blowing away Newtonian gravity?
@jeffreyjackson4742
Жыл бұрын
I love Neil's ability to make mundane things interesting and cool. Then takes the already epic stuff and describe it in ways you never though of that make it even cooler 🤯
@lorigarza9971
Жыл бұрын
And she just answered my question. Why is the universe expanding. Hopefully they will learn the answer to that in my lifetime.
@robertamcintyre627
Жыл бұрын
Wendy is so good at explaining difficult concepts that lay people can grasp.
@skeller61
Жыл бұрын
I love great scientists, because they are humbled by what we do not yet know, yet bold enough to discover new things that we now know better.
@victorreis8110
Жыл бұрын
This woman is amazing!! Thank you so much for this video
@kt420ish
Жыл бұрын
Wendy was awesome, and so was Matt. Great show as always.
@F_L_U_X
Жыл бұрын
I really like her. Please have her on more 😊
@JO-iv7tl
Жыл бұрын
Since we are currently in an expansion in space does this mean there isn't enough gravity to pull objects together. In effect counter the expansion. If so is there a low(er) amount of stars at the moment? This is either a die off of many stars or a youth, new generation, time in space.
@rdberg1957
Жыл бұрын
I really like Wendy Freedman as a person. She is very even--tempered and kind in addition to being brilliant.
@sagarah8217
Жыл бұрын
The more I learn about the universe, the more it sounds like cell development on a much grander scale
@evolutionofbeliefs
Жыл бұрын
Nice episode.I have always heard about the fabric of space-time and I wonder whether it is absolute or it may be floating in some hyperspace such that if you rip the fabric,you leak into something else.
@Russia-bullies
Жыл бұрын
or something may leak in?If that happens,we may not know it.Personally,I don’t believe there are other dimensions.None can proof my believes,though.
@robertmcbrayer6633
Жыл бұрын
no what I want is for you to go and take that expansion measurements and radio them back so we can compare And thank you for your service
@jasminyala3231
Жыл бұрын
Yes it's about time they go back and do live zoom , Now that technology is so advanced. Hubble bubble went and Measured the universe in the nineteen twenties. Aeroplane was Invented in 1903 when did Hubble Invented Hubble to go and do this measurement.
@jasons9689
Жыл бұрын
More Chuck, please
@SuperKazmierski
Жыл бұрын
I want Matt to be my friend. He seems so positive and fun. I bet he's hilarious at a party.
@michael-4k4000
Жыл бұрын
Lol, he's married David!
@MacNif
Жыл бұрын
Married people can have friends
@SuperKazmierski
Жыл бұрын
@@michael-4k4000 Who hurt you?
@michael-4k4000
Жыл бұрын
@@SuperKazmierski I don't understand the question? why would someone hurt me?
@ginamartin4540
Жыл бұрын
Gina Martin from NC. I asked the question about the Big Rip. @startalk Neil, what would you say in response to that extrapolation? We all want to know, even if it is so far in the distant future. I also had a second part to my question that Matt didn't read. "What happens to black holes during the expansion, or are black holes a direct representation of what happens when the expansion takes over an area in space?"
@ChrisMorrissey-m5f
Жыл бұрын
I have heard that if you were to watch a person fall into a black hole. The observer outside the black hole would see the person slowing down as they approached the event horizon, eventually seeming to be frozen at the event horizon. If the black hole is spinning, would the observer see that frozen image of the person remain stationary? Would the image of the person appear to spin or orbit the black hole due to frame dragging? The event horizon is not a solid surface, so it shouldn’t spin with the black hole, but it is hard to imagine that the last image of the person falling through the event horizon wouldn’t move.
@TheRealSkeletor
Жыл бұрын
Here's my hot take (call me crazy if you like, but hear me out first): It was originally theorized that due to the collective gravity of everything in the universe, the universe's acceleration will decrease over time, not increase. What if that is actually the case, the universe is slowing in expansion, but due to the effects of gravity on time dilation (as detailed in Einstein's theory of general relativity), time itself is also being slowed by the collective gravity of everything in the universe. So, from our perspective, the expansion of the universe appears to be accelerating, since the motion of objects is measured relative to the passage of time, which is also slowing?
@bullettube9863
Жыл бұрын
It's so wonderful watching and listening to these people but also sad to think that I won't be around to see all the discoveries that scientists will bring to the human race in fifty more years.
@MrDklocks
5 ай бұрын
8:25-8:43 This had me cracking up! " Oh,, you never aim " - Matt Kirshen
@petersage5157
Жыл бұрын
I wonder if the influences of gravity in our particular corner of the Virgo Supercluster are significant enough to make our reckoning of time appreciably different from what it might be in the middle of the Boötes Void. If there were a star system in the center of that void with an intelligent civilization, would the universe appear to be older, younger, or automatically adjusted to the same age due to the relative paucity of dark matter? Also, the whole "frame of reference" thing gives me a headache because there's always another reference frame; why haven't we redefined our frame of reference based on the Great Attractor, since that seems to have the greatest gravitational influence in our region? One of my favorite things about academia is the interplay and communication between arts and sciences. In the late 1980s, when ST:TNG first aired, most peoples' understanding of relativity and quantum physics wouldn't have challenged what is presented in _What the Bleep Do We Know,_ but it's fair to assume that Joni Mitchell would have heard of the findings of the B2FH paper when she wrote "Woodstock" in 1969. One of the most frustrating things about TV shows is that the writers have little to no connection with academia. In later seasons of _The Big Bang Theory,_ even when Sheldon was wearing black hole collision T-shirts, the writers were drawing on _What the Bleep_ concepts for their plot arcs.
@jeremymoses7401
Жыл бұрын
Are we moving toward andromeda or is it moving toward us? Is there an object in the middle drawing us together? If everything is receeding away from us at the hubble constant which is speeding up.... what would cause either of our galaxies to overcome that force that would put us on a collision course? Is there a possibility that the hubble constant could speed up enough to stop the collision?
@kenzgbr
Жыл бұрын
Wendy Freedman is an absolute legend!!!
@lesliejora9344
Жыл бұрын
It's good to c Neil alive n healthy
@jackehli621
6 ай бұрын
I'm positive while listening to Matt's voice that he is truly an alien. No human has a voice that sounds like that.
@justrelax8564
Жыл бұрын
I think that general relativity/age of the universe questions is more important. She said that when we macroscopically measure the age of the universe we shouldn't pick high gravity density regions like near black holes. So how can we accurately measure the age of the universe when we are also at a considerably high gravity region ourselves. When we look macroscopically, although not as black holes, we are in a high gravity region of galactic superclusters, milky way, the sun, planet earth. Just like when we measure heights on earth compared to the sea level which is the lowest place on surface, shouldn't we pick places with very low gravity like super voids to measure the age ?
@josselynpagliarini3899
Жыл бұрын
I have a question about fine tuning the Universe. I've long thought the Multiverse could answer that. After all, if we assume an infinite or/and eternal Multiverse, everything seems to come together to lead to a universe like ours, however finely tuned it may be. Yet, I recently read that to produce so many different universes, the Multiverse would also have to be fine-tuned (regardless of whether it was infinite or eternal I guess). This upset me because from then on, for the very first time, the hypothesis of a Creator God seemed to me a bit less far-fetched than the Multiverse. What do you think ?
@bugssy
Жыл бұрын
Will someone please turn on the lights in this cave we call the universe so we can see all the way to the end?
@jimcrutcher1845
Жыл бұрын
I love the show enough to join Patreon, but have yet to get any of my questions answered.
@jamiboothe
Жыл бұрын
at around 20:00 you started talking about being right and wrong in science. The most amazing thing a human brain can do is to be wrong, and use that wrong understanding to create a more correct understanding.
@hl8333
Жыл бұрын
Very informative and HILARIOUS show
@larshansen7862
Жыл бұрын
I am always in awe of you guys and your grasp on the big things, but use the terms: Decades and have stood the test of time in the same sentence?, perhaps I'm missing something?
@keithjansen2409
Жыл бұрын
The universe is like an eyee chart, the eye chart is never wrong but only how we are able to read it constantly changes. Dr. Jansen
@EWA8755
Жыл бұрын
With latest from JWST, my image of the Universe is now this: The Known (Observable) Universe is an amphoras bubble surrounded by a flat disk (dark mater?) As the disk exerts its pull on the bubble, expansion instantly happens in all directions away from the observation point.
@terryl7874
Жыл бұрын
Interesting answers about a serious complex subject. I came to realize that black holes are the galaxies trash disposal. Always enjoy conversations about the universe!
@jasminyala3231
Жыл бұрын
Yes it will be until they find the white hole
@terryl7874
Жыл бұрын
@@jasminyala3231 🤣😂
@brandtreppond2167
Жыл бұрын
I like Wendy. Sure, I love the grand predictions of the far future, but I also love that she focuses on what she can actually observe, here and now
@MrQlife
Жыл бұрын
I have this question that I hope that a specialist like you can explain me why it’s completely wrong 😁 What if the reason that the expansion of the universe accelerates is not the elusive dark energy but the fact that time is not constant and accelerates. Wouldn’t that also explain the wavelength of light travels over huge distances becomes longer ?
@wtfbbq
Жыл бұрын
Well space and time are linked and in a sense could be considered much the same thing, which is why it's referred to as "space-time". Much the same way electricity and magnetism are two sides of the same coin and are referred to as "electromagnetism"... So in a sense, the fact that space is expanding also means time is expanding in the same way. Edit: Therefore time expanding couldn't really be the CAUSE of space expanding, since dark energy is affecting both of them as 'spacetime'. (Just my random thoughts, I'm no expert.)
@Nefville
Жыл бұрын
31:10 - The moment when Neil realizes he can finally use the "what good are you if you don't know all the answers" line he's been hearing all this time 😂😂
@fleabaglane
Жыл бұрын
When is this great show live I been finding on KZitem
@ronalddippenaar2381
Жыл бұрын
If the Universe is expanding it can only be measured relative to our position. If that is the case, it would mean that we are either standing still or moving in an opposite direction. And if that is the case then there must be different speeds between the different galaxies. So how does one measure the different speeds with us as a reference point, simply because we're not in those spaces inorder make the calculations?
@bryonmartin8463
Жыл бұрын
Question: In this video we say that light doesn’t have the velocity to escape a black hole. I thought the reason light cant escape a black hole is because of the massive amount of gravity in a blackhole warps the space around it to the extent that all “gravitational roads” lead back to the blackhole once you get to the event horizon. Why is velocity relevant? Second question? If there was a velocity that could “escape” a blackhole what would that velocity be? Just trying to learn.
@kujessie06
Жыл бұрын
We are asking out of curiosity not worry. Why treat us like precious children.
@wtfbbq
Жыл бұрын
Even though Wendy didn't want to answer, I REALLY wish Neil answered the Big Rip questions despite it being speculative and sufficiently distant that it doesn't effectively matter. I mean Wendy was quite positive on the fact that the universe is expanding at an increasing rate, and as Neil said, the Big Rip is just an extrapolation of that aspect far into the future... I think it's plausible enough at this point that entertaining some thought experiments about that event is valid and I thought both questions were great, even if it's pure speculation.
@ginamartin4540
Жыл бұрын
I asked that question about the big rip on an atomic level... I was disappointed she didn't want to answer, because it's "so far in the future" but she's focused on the past of the universe.....that doesn't affect her either.
@Moondoggy1970
Жыл бұрын
This info is so interesting 🧐,this KZitem channel is AWESOME 🤩.
@younghan3573
Жыл бұрын
Been waiting for Neil to explain this!
@johnnym5444
Жыл бұрын
I’d love to hear a deeper explainer on super fluidity?
@AndrewJonkers
Жыл бұрын
Maybe this is a naïve question: Can general relativity model a changing Hubble constant over the life of the universe with a cosmological constant that is a function of time (in the event empirical observations are not in fact reconciled to a constant)? I ask this because in a calculus course I took way back when it was shown that when integrating partial differential equations you get a function of integration, not a constant of integration (as you do with ordinary differential equations).
@RadoslavFicko
Жыл бұрын
I would like to ask if it is possible to determine from the radial velocity of a galaxy parameters such as acceleration, potential energy and potential power from acceleration.For example, if a car accelerates from 60km/h(16.666m/s) to 100km/h(27. 77m/s) which has a mass of 1600kg in t=5s seconds , then the power to overcome the drag is P=m*(dv/dt)*(v+dv), since I cannot measure the small values of dt and dv I will use the approximate relationship P=m*(v2-v1/t)*(v1+(v2-v1))=1600*(11.111/5)*27.777=98.76kW and the potential power P/m=a*v =61.72W/kg. If for the radial velocity of the galaxy v=H*R then the potential energy is a*R=(H*R)^2=v^2, the acceleration a=2*H^2*R and the potential power P/m=H^3*R^2. The balance of acceleration with gravity is GM/R^2=2*H^3*R R^3/M=G/2*H^3 .I'm not saying those relationships are correct, but is it possible to determine those parameters based on observations?
@udayavenkatesan1333
Жыл бұрын
Some great Q and A in this one. 👏
@huhuruz77
Жыл бұрын
I have no choice and I`m forced to watch again this great episode because 41 minutes were not enough !! 🥰
@christos8518
Жыл бұрын
My question and in regards to Quantum entanglement. Is our observations of the expanding universe, causing the universe to expand
@stevefisher6708
Жыл бұрын
are we talking about the objects in the universe moving further apart, or the space between the objects expanding?
@imranroy4731
Жыл бұрын
Wendy has a camera-perfect scientist face, extremely photogenic for a Hollywood movie 🧡💙💚
@nikhil777x
Жыл бұрын
WE HAVE CALCULATED SPEED OF LIGHT BY OUR 🧠 BRAIN, SO IS IT POSSIBLE THAT OUR BRAIN'S NEURALS WORKS FASTER THAN LIGHT.....⚡🌠
@intergalacticangler
Жыл бұрын
i wish this was live,
@aaroncamss1623
Жыл бұрын
will donate soon, thank you!
@astrophysicistguy
Жыл бұрын
Thank-you Wendy ! … on Neil’s previous podcast I said exactly the same thing regarding his comments about the Big Rip, namely that there is no evidence this will happen, it’s just an entertaining theory by theoretical physicists
@MikeTheNABI
Жыл бұрын
If the universe's expansion is accelerating, is that acceleration linear? Can we work backwards to figure out when that acceleration was zero?
@TJ-hs1qm
Жыл бұрын
Given the unknown nature of DE and the fact that Energy and Mass are the same according to Einstein how can we attribute the expansion to the DE and not the DM?
@frankparoots2980
Жыл бұрын
Wendy Freedman is amazing!
@shiftylad9938
Жыл бұрын
If everything is expanding away then is there a point where we can rewind to and therefore find a place where the big bar happened and therefore know what was expanding into
@-_Nuke_-
Жыл бұрын
So at 10:35 she says "its beyond our Horizon" My question is - could this horizon be a Rindler Horizon? Most people might not know what a Rindler Horizon is... So let me explain: A Rindler Horizon, is something that comes out of special relativity that's quite interesting. It proves that you can "somewhat" travel "faster" than light. What that means is - everytime you accelerate towards some location in space - there is a Rindler Horizon formed behind you (VERY far away (lightyears away)) that light comming beyond that horizon CAN'T reach you (even though it is traveling faster than you) for as long as you are accelerating even if your acceleration is very small... So for example... Say that you are on a spaceship near the Earth accelerating towards some location in empty space... The fact that you accelerated - creates a Rindler Horizon at star 1 lightyear away from you (creates is used metaphorically here). So if you keep accelerating for 1 entire year - the light from that star won't be able to reach you, even if you accelerated with very small acceleration. But for that to happen you acceleration needs to be constant. If at any point you stop accelerating then the light eventually reaches you. And of course you will need an infinite amount of energy to keep accelerating forever - therefore with enough time, light eventually catches up to you - so no - you can't actually travel faster than light that way... So - it could be (that's my question) that our Galaxy is accelerating away from every other galaxy - and that acceleration (even though we are not traveling in space faster than light...) creates a Rindler Horizon that has been formed, at exactly at the edge of our observable Universe 13.8 billion light years away... If our Rindler Horizon is 13.8 billion light years away - then light from beyond that horizon will never reach us... If that is true - then there is no "faster than light" speed involved anywhere; Space doesn't need to do anything - neither move faster or slower than light... Cuz the whole thing can be explained by the usage of Rindler Horizons; If those galaxies that are 13.8 BLY away from us have a Rindler Horizon formed right smack on us - then nothing needs to move faster than light in order for the light from beyond those galaxies being unable to reach us... We simply exist beyond THEIR Rindler Horizon, so light will not reach us for as long as our Galaxy keeps accelerating... I hope this gets answered one day!
@noelcruz1298
Жыл бұрын
My question is, when space time expand faster that the speed of light, did spacetime carry the stars along its way?
@Russia-bullies
Жыл бұрын
Space time can’t expand & could not have expanded.
@mariusmacas380
Жыл бұрын
Thank you Wendy 👍
@Bosnian.Spartan
Жыл бұрын
Is it possible the way we see earth and the solar system might be upside down? Like north is actually south and south is actually north??
@jakestatefarm712
Жыл бұрын
Question. If you could go anywhere in space where would you go
@718Insomniac
Жыл бұрын
Great episode. Really good.
@franciscogallegos7936
Жыл бұрын
What happens in time measurements when you go below seconds?
@SteveC38
Жыл бұрын
Another Great One, Y’all👍
@jeremygreen5552
Жыл бұрын
Yay! They asked my question!! How cool
@ThaVoodoo1
Жыл бұрын
Our nearest star cluster is the Hyades cluster, also known as the Melotte 25 cluster. It is located in the constellation Taurus and is approximately 153 light years away from Earth.
@BS-iu4je
Жыл бұрын
What’s the point we can’t see past because it was too close to us in time and distance to see it today because all that information has already past us by?
@r.a.monigold9789
Жыл бұрын
Find any Middle School aged child - who has sufficient intelligence to function. Put that child in the Library of Congress for an hour, then ask them what they learned from all that stored knowledge. This is what WE (me) the general public is asking scientists to do after such a brief time with the JWST data. So I'm gunna lighten up for a while and say THANK YOU to everyone involved in expanding our Human knowledge base!
@MondoLeStraka
Жыл бұрын
How many particles are there in the known universe? I have heard between ~10**70 to ~ 10**80. TIA.
@karlgoebeler1500
Жыл бұрын
I became aware on October 4 1988. Then all the events I had observe became factors for comparison. And yes I have been seeing the "Ratrix" in the conduct of the people themselves. Believe me thru me a "loop". And yes that does become another factor (Food for thought) in my day to day.
@lmili7097
Жыл бұрын
Like to see more topics on The Great Attractor
@irohbello9819
Жыл бұрын
@startalk when are you guys going to go back to the old ways? Where everyone is in the same room. In my opinion the show has a better flow that way.
@MrAlistar28
Жыл бұрын
was waiting for this
@manuwilson4695
Жыл бұрын
Matt is an English comedian. BUT he's also keenly interested in science. 👍
@songOmatic
Жыл бұрын
great episode everyone!!!
@joehebert789
Жыл бұрын
That was an interesting topic to dive into.
@stevensperber8629
Жыл бұрын
Pronouncing Nevada correctly 👏
@winchesterbear
Жыл бұрын
To expect Einstein to never make a mistake is absurd.
@lelandpalmer768
Жыл бұрын
The cosmic microwave background certainly appears to be consistent with a big bang. But really, it is almost entirely uniform, the variations in it are very tiny, on the order of parts per million. People claim to be finding evidence for all sorts of structure in it, and I don't doubt that the variations in it are there, but would these variations be the same in other solar systems or galaxies? How can we know that?
@lelandpalmer768
Жыл бұрын
I'm wondering about some sort of absorption from local dust or charged particles or something, absorbing microwaves locally, creating the hot and cold spots in the CMB. The variations in the CMB are tiny, something like 10 ppm.
@HonkIfYouLoveBeer
Жыл бұрын
NDT is my favorite type of colleague. Good to joke around a bit and not take himself seriously, but when it’s time buckles down and takes the work seriously
@g-urts5518
Жыл бұрын
Best way I've heard why space can expand faster than the speed of light is this: nothing can travel, through space, faster than the speed of light. Nothing says space can't expand, "dragging" galaxies with them. That galaxy is not travelling through space faster than light, the space itself is "moving" faster than the speed of light.
@ravichanana3148
Жыл бұрын
There is some radio telescopic data from u.k that gives the hubble constant of 42. It's on the internet.
Пікірлер: 389