Despite being a retired manual laborer, I've always had a keen interest in Astronomy. Finding Fraser Cain has been a bright spot for me because I am able to continue with my fascination from the comfort of my home. Thank you.
@glennscott8622
Ай бұрын
Fantastic! The “stuff” between us and Proxima is my favorite topic in astronomy.
@cittaaukoto_japan9926
Ай бұрын
Fraser Cain is one of the best astronomical journalists around. He knows enough to ask the questions that get interesting responses from scientists to us interested laypeople.
@JamesCairney
Ай бұрын
These interviews are always good
@paulwilson6511
Ай бұрын
Oumuamua was only traveling at 0.03% of the speed of light. If it came from another solar system, it would have spent up to 20,000 years traveling in interstellar space. So not a spaceship and only a little bit faster than comets in our solar system. At that speed though, let's say an object several hundred metres across and hit the Earth by chance, it would be fairly devastating.
@Kinthesky
Ай бұрын
Great guest. Dr David Jewitt doesn't give near enough interviews. He isn't known to suffer fools so it's a great honour to your skills that David would come on your Podcast. Well done.
@BillBakerB
Ай бұрын
Yes, such a great interview. My favorites were whenever he would say, "The most likely explanation is a combination of those [things we just discussed]" - I think it shows that finding real answers requires knowing all the theories but not be overly attached to any one of them, and then weighing them together. Also, to see his enthusiasm for the process of discovery still intact, even as an old dude. So cool.
@MelindaGreen
Ай бұрын
Question: What's the most practical way to capture samples from interstellar interlopers? I bet it will be somewhat disappointing when we get our first samples and they look just like stuff we're already familiar with. Because why wouldn't they be since that's where we came from?
@galaxia4709
Ай бұрын
Thank you Fraser, for giving us astronomy content during the summer!!
@isaacplaysbass8568
Ай бұрын
I'm going to have to save this for tomorrow! Looking forward to it. Thank you Frasier.
@jeffnewcomb601
Ай бұрын
Oort cloud and interstellar comets are amazing. Nice. Give us back our 9th planet.
@FrancisFjordCupola
Ай бұрын
No planet out there is yours.
@jeffnewcomb601
Ай бұрын
@@FrancisFjordCupola It's a joke. F off.
@user-bl1gp7zu6w
Ай бұрын
Love your work Fraser
@ilkoderez601
Ай бұрын
This was a really good interview. I learned a lot. Thank you!
@MBSfilms77
Ай бұрын
The thumbnail suggests that 10,000 troops of an alien species called "The Oumuamua" have arrived to destroy our Solar System. Terrifying.
@billcade2137
Ай бұрын
Thanks to both Frasier and Dr. David for a very educational and interesting topic.
@CosmicCleric
Ай бұрын
I find myself wishing that Dr. Jewitt's volume was larger/clearer.
@jimgreen4504
Ай бұрын
100% . It’s astounding these brilliant scientists think laptop mics are acceptable for interviews. So many opportunities for the transfer of knowledge ruined by poor planning and a laissez faire attitude towards audio quality . It's the same problem on the Event Horizon channel. Sound checking the guests would go a long way towards presenting an acceptable program. I bail as soon as I hear poor quality audio.
@FrancisFjordCupola
Ай бұрын
I thought it was perfectly fine to follow. What is astounding is that people assume that scientists for that one good big interview done online should have some studio level equipment. No. Just no.
@jimgreen4504
Ай бұрын
@@FrancisFjordCupola A decent USB microphone can be had for under 30$. 🙄
@removechan10298
Ай бұрын
AMAZING insights! learned so much, THANK YOU!!!
@floydbertagnolli944
14 күн бұрын
Thank you Fraser, I leaned a lot about asteroids!
@Firebuck
Ай бұрын
Terrific interview. I love David's passion and insight. Thanks!
@ilkoderez601
Ай бұрын
Astronomy / Cosmology based documentary series become "dated" very quickly. It's an exciting field. It's crazy watching television shows from 10-15 years ago, talking about 'possible' gravitational waves (now confirmed), blackholes (we have pictures of them)...
@marshalleubanks2454
Ай бұрын
Excellent video
@brucethomas471
Ай бұрын
Cool interview! Now I can't wait for the next ISO!
@removechan10298
Ай бұрын
Could Theia (the huge chunk lodged in earth's mantle, caused the moon, started driving tectonics) be an example of a large interstellar? I guess the answer is "yes" it could be, but it's interesting to see if there's anything we could surmise from that we know on earth and moon and possible impact energies to see if this could be tilted over a theoretical max interplanetary source...
@robwalker4548
17 күн бұрын
The number of moon craters that seem to be in an aliment have always fascinated me. I now wonder how many of those could have been trailing satellites rather than breaking up while falling in. I assume someone has studied those of 3 or more to see if they are random and if not due to the high crater numbers this might be something to play with using AI.
@muddygun
Ай бұрын
I find it interesting that it would take like 10,000+ years for Oumuamua to travel 1 light year away from the Sun. Heck, as long as we don't screw things up too much we can get to that thing way before then. Calling it now; The year 2430, human spacecraft reach Oumuamua.
@FLPhotoCatcher
Ай бұрын
I think humans will reach Oumuamua much sooner, say 2098. And probes by 2060.
@00dfm00
Ай бұрын
Lol. Calling it now: in the year 2130 we will teleport to Oumuamua. Prove me wrong. 🙃
@AdrianBoyko
Ай бұрын
This was an episode of Star Trek: TNG
@Nomad77ca
Ай бұрын
@@00dfm00 It's your claim. Burden of proof is on you, not us. We will peer review your paper tho :)
@muddygun
Ай бұрын
@@00dfm00I understand the foolishness of making a prediction…but yours good sir is just batty
@Kinthesky
Ай бұрын
Funny thing is I was just checking out a Fireball report on ASGARD where the velocity was 81.4 Km/sec. Turns out it was a measurement error. "...automatic algorithm failed to properly track the meteor". I wonder how often that happens? Oh well.
@golddiver
Ай бұрын
Asked one of the astronomers on the Kama'aina Observatory Experience tour thru the CFHT telescope how we had found TWO interstellar visitors in such a short time. He replied that they hadn't been looking for objects in non-parabolic orbits. How do you not spot something tracking thru an image no matter where you point the scope? I mean, do we have an AI looking at old images and comparing them with new?
@mrvan5347
Ай бұрын
I like your remark about undiscovered objects between us and proxima Centauri. Imagine the objects and disturbance by those objects during the development of our solar system, as it is now. Can someone calculate what time ago and what size and mass such passing objects between our Oort Cloud and Proxima's 'Oort Cloud' need to have to sling interstellar materials towards the sun? So fascinating. Thanks again for all the excellent videos.❤
@andreasboe4509
Ай бұрын
If there is a one hundred meter interstellar astroid for every 10AU cubed, there must be an awful lot of them in and around the Milky Way. Is the total mass of them enough to constitute the dark matter?
@peterisaacs6882
Ай бұрын
Absolutely fascinating discussion. Thanks
@derekflegg2510
Ай бұрын
Follow Oumuamua's outbound trajectory ... 'Oumuamua is heading toward the constellation Pegasus and is now far beyond the orbit of Neptune. The best-known of the Planet 9 theories predicted the existence of a distant planet that was influencing the orbits of Uranus and Neptune.
@deant6361
Ай бұрын
Thanks for sharing Fraser.
@sku32956
14 күн бұрын
Great, topic really enjoy this episode
@doncarlodivargas5497
Ай бұрын
How had it been if we could hitchhike on these interstellar visitors? Send up rockets to meet them and attach ourselves to it on its way back out in the universe? Wouldn't that be a cheap way to explore space? Perhaps we could even have rockets floating dormant out in space, waiting for a visitor?
@twonumber22
Ай бұрын
It would take too long to explore beyond our solar system
@doncarlodivargas5497
Ай бұрын
@@twonumber22 - so they move slower than the voyager satellites? I thought these "interstellar visitors" moved with a very high speed?
@doncarlodivargas5497
Ай бұрын
@@twonumber22 - I checked, the voyager satellites move at ~15km/s, while the oumuamua for example, move at ~90km/s, thats 6 times faster, if interstellar visitors are too slow, what was then the point with the voyager satellites?
@frasercain
Ай бұрын
If you can match the speed of the probe to land on it, then you don't need it take you out into the Universe.
@twonumber22
Ай бұрын
@@doncarlodivargas5497 Voyagers were for exploring the outer solar system, and they completed their missions long ago. Now they're just toys but we're still learning from them.
@elephantsarenuts5161
Ай бұрын
Very interesting interview.
@allmylettuce1969
Ай бұрын
Loved the vid!
@user-op3zf6if9i
Ай бұрын
What would be so nice If it were possible to lay a net of high strength material in the path of an interstellar interloper, This net would have a tail from which end a payload could be suspended and Hitch an Interstellar Ride, where the object provides a high acceleration and the Delta-V. A propellentless ride at that ! The net being hit by the hypervelocity object WOULD be a engeneering challenge, but maybe not insurmountable.
@seditt5146
Ай бұрын
I suspect we will find Oumuamua was a contact binary, loosely coupled that explains its unusual behavior as it likely cracked apart on approach to our sun. This could explain the light curve anomalies and likely as well the trajectory issues as its mass going out was not equal to that coming in. We should look for the other half, but I am not nearly a good enough mathematician to calculate where to look for such a thing. I suspect Avi could give better insight on the legitimize of my hypothesis though.
@marcekessen8003
Ай бұрын
Question: Why do astrophysicists/ cosmologists assume that the young very dense, compact universe acted the same way our way more spread out universe does now? Every time I hear about the distance ladder (and many other things) it seems there are some basic assumptions they use that do not seem axiomatic to me, I think “ have you proven THAT yet?” Then they use it as a base for all this other more complicated stuff. I wish I had a more concrete example but I have a biology science brain and do not even pretend to comprehend a lot of this stuff. I find it fascinating though.
@TheReferrer72
Ай бұрын
That was a brilliant discussion.
@stephenburrows4250
Ай бұрын
Absolutely brilliant, fascinating, and definitely educational. Thanks Fraser and huge Thankyou shoutout to David… 🙏🫶
@Poult100
Ай бұрын
Oumuamua is approx 1/4 mile long with a polar spin rate of approx 8hrs. Please, someone do the g-force math for me. Strikes me that it is a strong, homogeneous structure to not have flung apart. This must give strong indications of it's make-up and formation. It was touched on but I'd like to have heard more of David's thoughts on that.
@Jkaninteangemittnamn
Ай бұрын
So what are the chance of big object travelling through the solarsystem ? 1/10 000 for objects bigger that 50 km? - A 50km rock would sustain a family leaving the solarsystem to colonise and alienes could do the same coming to us on them
@revmsj
Ай бұрын
Terrance Howard told me these interstellar bits are formed by their respective stars and planets pooping them out at us….🤔
@DaxSass
Ай бұрын
Oumouamoua might actually be an alien UFO. Imagine this: someone can send an object the size of Oumouamoua out of their system at very very high velocity so that it can actually reach other far flung system out there. The always main problem is the fuel capacity needed for course correction and deceleration. If you cannot use that reserve fuel then you have to get it somewhere else, such as the gravitational sling shot or deceleration around other star on your way to somewhere else. You cannot know where huge planet size like Jupiter would be in the system, but the main star... always. So a slight push for course correction over some decades can send the object around a star to either gain or lose velocity as well as main course correction. The problems of physics don't just dissapeare because of aliens.
@bbbenj
Ай бұрын
Quite outstanding!
@greggweber9967
Ай бұрын
Being on two planets means being on two targets, but also two egg baskets.
@christopherwilkening7843
Ай бұрын
There being lots of rocks between stars could also help explain the Fermi Paradox. If the area between stars are orders of magnitude more cluttered with rocks it would be all the more difficult and dangerous to travel there. More math is needed.
@oharrismaytin
Ай бұрын
Amazing interview!
@TheEyez187
11 күн бұрын
I wonder what it was that gave Borisov such velocity for an eccentricity over 3!* We could send a Starshot after them! :D Would have been really interesting if they'd both come in at similar angles, as that could have meant a linked origin, which would lead to the probability of more incoming! * Edit: .. the mechanism [for ejection] i.e Borisov; going to get my answer now; I also wonder what next weeks winning lottery numbers are (ah.. UK National lottery/31/8/24; don't want the right numbers for the wrong lottery) :D
@Marine_Gunsmith
Ай бұрын
OK, could someone let me know if my math is off or what. According to Dr. Jewitt there might be an interstellar object for every 10 cubic AU of space (at 29:50). If the Oort could is a sphere 50,000 AU in Radius, would that mean over 12 million interstellar objects could be within the solar system and Oort cloud? That would be mind boggling...
@mshepard2264
Ай бұрын
The comets like Borisov are cool but kinda terrifying. I mean they are completely unpredictable. No amount of categorizing near earth or asteroid belt objects will help.
@spellkowski6996
Ай бұрын
there's 0 chance any of these are gonna hit you, so don't worry about it
@TheExplodingGerbil
Ай бұрын
Brilliant episode! ❤
@charlesbell6248
Ай бұрын
So, all of the universe is in motion...
@seanmchugh840
Ай бұрын
The distance to the next star is 600 times the Oort cloud distance so why wouldn't the Oort cloud form from material around the sun? The original cloud of material would cover 50000AU easily.
@calgreg2569
Ай бұрын
Maybe they both came from the same nova that created them.. just random debris on the same trajectory..they are still very very cool..
@tiagotiagot
Ай бұрын
What sort of impact crater would the average visitor interstellar object cause in a head-on collision with Earth during the Sun-ward phase of the trajectory? And how much time would we have to do something about it before it happens?
@user-op3zf6if9i
Ай бұрын
Frasier you are the population 3 star in my universe.
@CyFr
Ай бұрын
Oh I see... We're in the star troopers timeline.
@jasonjackson4524
Ай бұрын
Is the orc cloud like a bubble around the solar system? And if so why wouldn't the parts of the orc cloud in front of the sun that's moving around the galaxy fall inward towards the sun?
@mrslave41
Ай бұрын
did they discuss the acceleration of omuamua?
@johnosullivan675
Ай бұрын
Does anybody here have any thoughts about the mission of Zuma, USA-280? The timing of the launch and the available information and the purported fate of the mission all make me think it was somehow related to Oumuamua.
@mikeharrington5593
Ай бұрын
Is there no archived Space Weather footage of the Sun which could reveal Oumuamua's entry into our Solar System ?
@davesatxify
Ай бұрын
Great vid as usual
@UselessKnowbody
Ай бұрын
Actually, The Pink Floyd album of the same name has probably sold far more copies.
@bryandraughn9830
Ай бұрын
I can imagine globular clusters are spraying material all over the place.
@MPADAD1
Ай бұрын
watch these approach corridors
@markashworth472
Ай бұрын
bugs aiming with two different types of ammo! Would you like to know more?
@0range.
Ай бұрын
Come on man no joke 😊
@janehamber
Ай бұрын
Go Bruins!!!
@michaelbond569
Ай бұрын
What if Pluto is a captured interstellar dwarf planet?
@Daniel-yc5js
Ай бұрын
The timespan we are able to cover îs equal to nothing even 10k years are quite modest... and so are the results so far...patience and luck😢
@charlesbell6248
Ай бұрын
Is our star system moving in a different direction (speed) than other materials, thus adding to relative speed observed by us?
@NullHand
Ай бұрын
Not really. Everything in our neck of the galactic woods is going in pretty much the same direction around, like cars on an interstate. Some stars will be going marginally faster (like Sol), some marginally slower depending on who is on what part of their elliptical orbit. Since we are doing 255km/sec in a 220ish zone, we are headed down the "road" slightly faster, and are probably closer to our perigalacticon. (That above is an IRL orbital dynamic word, not some LARPfest I just made up)
@bronwynecg
Ай бұрын
I’d like to think ‘oumuamua is a sliver of a planet that exploded centuries ago…
@rajeevgangal542
28 күн бұрын
we will need 10000 Loeb's to claim that all these are alien ships then
@chrisruthford4492
Ай бұрын
They could actually be stationary and our solar system is the one passing through.
@musicilike69
Ай бұрын
Kind of off tangent but there seems a bit of an uptick lately in - it's only a matter of time until we get a detection. I was just pondering..signal detection or evidence. N weapons give off a gamma double flash right that must be detectable for a light year or two. So maybe we made ourselves detectable. Do we not in war convert a LOT of mass to energy if you get me? I was musing on the chances of our first detection being signs of conflict out there, we might faff about with a few radio signals but surely it's the H BOMB that made us locally detectable? Signs of war and conflict. It would be deliciously cool and terrifying if it was a - yep, that was definitely aliens testing out a Nicol Dyson Beam on a planet.
@DawidUliczny-ro7eo
Ай бұрын
Nobody tell Avi Loeb!
@lukasiewicz.painting
Ай бұрын
Fraser, there are tools to improve poor quality sound from your guests, we woud all enjoy it , love your content !
@canuckinsk
Ай бұрын
It makes the case stronger for a built object VS a natural object.
@boba2783
Ай бұрын
Space 1999 series 1
@user-bl1gp7zu6w
Ай бұрын
Algorithm ❤
@Navya420
Ай бұрын
We will be long dead before we have answers. We screwed up. Maybe the future evolutions of other animal species will be able to learn from us, if we can store data that long.
@alexisdespland4939
Ай бұрын
you know a metior just almost hit the statue of liberty i but burt up before it hit the gtound.
@grhinson
Ай бұрын
Something sounds afoot. Hmm?
@Chief-1
Ай бұрын
#1
@alexanderpitman9433
Ай бұрын
When Worlds Collide (1951)
@AliHSyed
Ай бұрын
This hiatus is great so far - maybe u should be on hiatus all the time 😅
@liamguitars
Ай бұрын
What is its just the tip of some galactic shrapnel from the destruction of Alderaan !! another billion voices all silenced at once. C'mooon Betelgeuse go boom before I die. Thanks for another great video.
@AdrianBoyko
Ай бұрын
So many UFOs 😂
@alangarland8571
Ай бұрын
If interstellar space is highly populated with non-trivial objects like these, that pretty much kyboshes any hope of interstellar travel for us in the future.
@user-bl1gp7zu6w
Ай бұрын
Space is big.. photons travel thousands of light years without hitting obstacles..
@alangarland8571
Ай бұрын
@@user-bl1gp7zu6w Good point, but I think it would be hard to get insurance cover for an interstellar journey.
@Nomad77ca
Ай бұрын
If our solar system is moving through an effective 'sea' of interstellar objects, what does that say about human interstellar travel. Rocky road indeed.
@melandor0
Ай бұрын
On the other hand, space is big. When Andromeda and the milky way collide and merge it's vanishingly unlikely that even one star will contact another!
@Spherical_Cow
Ай бұрын
Man, the audio quality on Dr. Jewitt's microphone is just painful. Literally, my ears hurt after listening to this interview. Was there nothing that could be done in post, to reduce the god-awful sibilance?
@frasercain
Ай бұрын
It was more about the acoustics of the room, unfortunately.
@mikeharrington5593
Ай бұрын
You could choose subtitles ?
@spellkowski6996
Ай бұрын
loool it wasn't that bad, but I get the commentary cuz that's usually how I feel when you have guests outside of the controlled studio setting if you want to hear from the guests you just have to live with it tho cuz they are prob not gonna have a yeti or w/e and studio set up maybe by biggest nitpick, and I'm just speaking generally, is when the levels are so different that 1 is quiet and 1 is loud
@frasercain
Ай бұрын
I've even sent microphones to guests in the past
@spellkowski6996
Ай бұрын
@@frasercain yeah, I'm not an audio engineer, but there's really only so much you can do, I think, when guests are actual academics and not like professional pod guests I'd rather hear from them at zoom call quality than not at all tho
@kimdani1795
Ай бұрын
Let us visit Their Cantine And pay with Bitcoins 😂😂
@jandlouhy6914
Ай бұрын
So, interstellar "empty " space is more like pile of rubbish .
@alpheuswoodley8435
Ай бұрын
Unsubscribed.
@JoshShultzandKids
Ай бұрын
Your contribution is appreciated
@luvit579
Ай бұрын
I didn’t appreciate the guests attack on Doctor Loeb’s work either, but this is generally an informative channel.
Пікірлер: 139