Finding Interstellar Visitors Flying Through The Solar System

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  • Опубликовано: 4 сен 2024

Комментарии • 139

  • @temporaladvisor3958
    @temporaladvisor3958 Месяц назад +7

    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.

  • @cittaaukoto_japan9926
    @cittaaukoto_japan9926 Месяц назад +19

    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.

  • @glennscott8622
    @glennscott8622 Месяц назад +6

    Fantastic! The “stuff” between us and Proxima is my favorite topic in astronomy.

  • @JamesCairney
    @JamesCairney Месяц назад +18

    These interviews are always good

  • @paulwilson6511
    @paulwilson6511 Месяц назад +2

    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.

  • @MelindaGreen
    @MelindaGreen Месяц назад +4

    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?

  • @Kinthesky
    @Kinthesky Месяц назад +1

    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
      @BillBakerB Месяц назад

      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.

  • @galaxia4709
    @galaxia4709 Месяц назад +5

    Thank you Fraser, for giving us astronomy content during the summer!!

  • @user-bl1gp7zu6w
    @user-bl1gp7zu6w Месяц назад +10

    Love your work Fraser

  • @isaacplaysbass8568
    @isaacplaysbass8568 Месяц назад +1

    I'm going to have to save this for tomorrow! Looking forward to it. Thank you Frasier.

  • @MBSfilms77
    @MBSfilms77 Месяц назад +1

    The thumbnail suggests that 10,000 troops of an alien species called "The Oumuamua" have arrived to destroy our Solar System. Terrifying.

  • @jeffnewcomb601
    @jeffnewcomb601 Месяц назад +2

    Oort cloud and interstellar comets are amazing. Nice. Give us back our 9th planet.

  • @billcade2137
    @billcade2137 Месяц назад

    Thanks to both Frasier and Dr. David for a very educational and interesting topic.

  • @ilkoderez601
    @ilkoderez601 Месяц назад +1

    This was a really good interview. I learned a lot. Thank you!

  • @CosmicCleric
    @CosmicCleric Месяц назад +1

    I find myself wishing that Dr. Jewitt's volume was larger/clearer.

    • @jimgreen4504
      @jimgreen4504 Месяц назад +1

      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
      @FrancisFjordCupola Месяц назад

      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
      @jimgreen4504 Месяц назад +1

      @@FrancisFjordCupola A decent USB microphone can be had for under 30$. 🙄

  • @Kinthesky
    @Kinthesky Месяц назад

    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.

  • @ilkoderez601
    @ilkoderez601 Месяц назад +1

    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)...

  • @floydbertagnolli944
    @floydbertagnolli944 14 дней назад

    Thank you Fraser, I leaned a lot about asteroids!

  • @robwalker4548
    @robwalker4548 16 дней назад

    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.

  • @removechan10298
    @removechan10298 Месяц назад +1

    AMAZING insights! learned so much, THANK YOU!!!

  • @derekflegg2510
    @derekflegg2510 Месяц назад

    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.

  • @Firebuck
    @Firebuck Месяц назад

    Terrific interview. I love David's passion and insight. Thanks!

  • @golddiver
    @golddiver Месяц назад

    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?

  • @marshalleubanks2454
    @marshalleubanks2454 Месяц назад +3

    Excellent video

  • @andreasboe4509
    @andreasboe4509 Месяц назад +1

    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?

  • @removechan10298
    @removechan10298 Месяц назад +1

    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...

  • @user-op3zf6if9i
    @user-op3zf6if9i Месяц назад

    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.

  • @brucethomas471
    @brucethomas471 Месяц назад +4

    Cool interview! Now I can't wait for the next ISO!

  • @revmsj
    @revmsj Месяц назад

    Terrance Howard told me these interstellar bits are formed by their respective stars and planets pooping them out at us….🤔

  • @marcekessen8003
    @marcekessen8003 Месяц назад

    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.

  • @Jkaninteangemittnamn
    @Jkaninteangemittnamn Месяц назад

    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

  • @muddygun
    @muddygun Месяц назад +5

    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
      @FLPhotoCatcher Месяц назад

      I think humans will reach Oumuamua much sooner, say 2098. And probes by 2060.

    • @00dfm00
      @00dfm00 Месяц назад

      Lol. Calling it now: in the year 2130 we will teleport to Oumuamua. Prove me wrong. 🙃

    • @AdrianBoyko
      @AdrianBoyko Месяц назад +1

      This was an episode of Star Trek: TNG

    • @Nomad77ca
      @Nomad77ca Месяц назад

      @@00dfm00 It's your claim. Burden of proof is on you, not us. We will peer review your paper tho :)

    • @muddygun
      @muddygun Месяц назад

      @@00dfm00I understand the foolishness of making a prediction…but yours good sir is just batty

  • @Poult100
    @Poult100 Месяц назад

    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.

  • @seditt5146
    @seditt5146 Месяц назад

    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.

  • @DaxSass
    @DaxSass Месяц назад

    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.

  • @doncarlodivargas5497
    @doncarlodivargas5497 Месяц назад +1

    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
      @twonumber22 Месяц назад +2

      It would take too long to explore beyond our solar system

    • @doncarlodivargas5497
      @doncarlodivargas5497 Месяц назад +2

      @@twonumber22 - so they move slower than the voyager satellites?
      I thought these "interstellar visitors" moved with a very high speed?

    • @doncarlodivargas5497
      @doncarlodivargas5497 Месяц назад +1

      @@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
      @frasercain  Месяц назад +7

      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
      @twonumber22 Месяц назад +2

      @@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.

  • @peterisaacs6882
    @peterisaacs6882 Месяц назад

    Absolutely fascinating discussion. Thanks

  • @sku32956
    @sku32956 14 дней назад

    Great, topic really enjoy this episode

  • @christopherwilkening7843
    @christopherwilkening7843 Месяц назад

    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.

  • @stephenburrows4250
    @stephenburrows4250 Месяц назад

    Absolutely brilliant, fascinating, and definitely educational. Thanks Fraser and huge Thankyou shoutout to David… 🙏🫶

  • @greggweber9967
    @greggweber9967 Месяц назад +3

    Being on two planets means being on two targets, but also two egg baskets.

  • @allmylettuce1969
    @allmylettuce1969 Месяц назад +1

    Loved the vid!

  • @elephantsarenuts5161
    @elephantsarenuts5161 Месяц назад

    Very interesting interview.

  • @seanmchugh840
    @seanmchugh840 Месяц назад

    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.

  • @deant6361
    @deant6361 Месяц назад

    Thanks for sharing Fraser.

  • @Marine_Gunsmith
    @Marine_Gunsmith Месяц назад

    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...

  • @calgreg2569
    @calgreg2569 Месяц назад

    Maybe they both came from the same nova that created them.. just random debris on the same trajectory..they are still very very cool..

  • @UselessKnowbody
    @UselessKnowbody Месяц назад

    Actually, The Pink Floyd album of the same name has probably sold far more copies.

  • @charlesbell6248
    @charlesbell6248 Месяц назад +4

    So, all of the universe is in motion...

  • @mrvan5347
    @mrvan5347 Месяц назад

    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.❤

  • @TheReferrer72
    @TheReferrer72 Месяц назад

    That was a brilliant discussion.

  • @bbbenj
    @bbbenj Месяц назад

    Quite outstanding!

  • @mshepard2264
    @mshepard2264 Месяц назад

    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
      @spellkowski6996 Месяц назад +1

      there's 0 chance any of these are gonna hit you, so don't worry about it

  • @jasonjackson4524
    @jasonjackson4524 Месяц назад

    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?

  • @TheEyez187
    @TheEyez187 11 дней назад

    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

  • @CyFr
    @CyFr Месяц назад

    Oh I see... We're in the star troopers timeline.

  • @markashworth472
    @markashworth472 Месяц назад

    bugs aiming with two different types of ammo! Would you like to know more?

  • @bryandraughn9830
    @bryandraughn9830 Месяц назад

    I can imagine globular clusters are spraying material all over the place.

  • @mikeharrington5593
    @mikeharrington5593 Месяц назад

    Is there no archived Space Weather footage of the Sun which could reveal Oumuamua's entry into our Solar System ?

  • @oharrismaytin
    @oharrismaytin Месяц назад

    Amazing interview!

  • @johnosullivan675
    @johnosullivan675 Месяц назад

    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.

  • @user-op3zf6if9i
    @user-op3zf6if9i Месяц назад

    Frasier you are the population 3 star in my universe.

  • @tiagotiagot
    @tiagotiagot Месяц назад

    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?

  • @TheExplodingGerbil
    @TheExplodingGerbil Месяц назад

    Brilliant episode! ❤

  • @Daniel-yc5js
    @Daniel-yc5js Месяц назад

    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😢

  • @mrslave41
    @mrslave41 Месяц назад

    did they discuss the acceleration of omuamua?

  • @chrisruthford4492
    @chrisruthford4492 Месяц назад

    They could actually be stationary and our solar system is the one passing through.

  • @MPADAD1
    @MPADAD1 Месяц назад

    watch these approach corridors

  • @davesatxify
    @davesatxify Месяц назад

    Great vid as usual

  • @michaelbond569
    @michaelbond569 Месяц назад

    What if Pluto is a captured interstellar dwarf planet?

  • @rajeevgangal542
    @rajeevgangal542 28 дней назад

    we will need 10000 Loeb's to claim that all these are alien ships then

  • @bronwynecg
    @bronwynecg Месяц назад

    I’d like to think ‘oumuamua is a sliver of a planet that exploded centuries ago…

  • @janehamber
    @janehamber Месяц назад

    Go Bruins!!!

  • @musicilike69
    @musicilike69 Месяц назад

    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.

  • @0range.
    @0range. Месяц назад +1

    Come on man no joke 😊

  • @charlesbell6248
    @charlesbell6248 Месяц назад

    Is our star system moving in a different direction (speed) than other materials, thus adding to relative speed observed by us?

    • @NullHand
      @NullHand Месяц назад +1

      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)

  • @canuckinsk
    @canuckinsk Месяц назад

    It makes the case stronger for a built object VS a natural object.

  • @Navya420
    @Navya420 Месяц назад

    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.

  • @DawidUliczny-ro7eo
    @DawidUliczny-ro7eo Месяц назад

    Nobody tell Avi Loeb!

  • @alexisdespland4939
    @alexisdespland4939 Месяц назад

    you know a metior just almost hit the statue of liberty i but burt up before it hit the gtound.

  • @boba2783
    @boba2783 Месяц назад

    Space 1999 series 1

  • @grhinson
    @grhinson Месяц назад

    Something sounds afoot. Hmm?

  • @lukasiewicz.painting
    @lukasiewicz.painting Месяц назад

    Fraser, there are tools to improve poor quality sound from your guests, we woud all enjoy it , love your content !

  • @alexanderpitman9433
    @alexanderpitman9433 Месяц назад

    When Worlds Collide (1951)

  • @user-bl1gp7zu6w
    @user-bl1gp7zu6w Месяц назад

    Algorithm ❤

  • @alangarland8571
    @alangarland8571 Месяц назад

    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
      @user-bl1gp7zu6w Месяц назад +3

      Space is big.. photons travel thousands of light years without hitting obstacles..

    • @alangarland8571
      @alangarland8571 Месяц назад

      @@user-bl1gp7zu6w Good point, but I think it would be hard to get insurance cover for an interstellar journey.

  • @Chief-1
    @Chief-1 Месяц назад +1

    #1

  • @AliHSyed
    @AliHSyed Месяц назад

    This hiatus is great so far - maybe u should be on hiatus all the time 😅

  • @liamguitars
    @liamguitars Месяц назад +1

    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.

  • @Nomad77ca
    @Nomad77ca Месяц назад

    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
      @melandor0 Месяц назад +3

      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!

  • @AdrianBoyko
    @AdrianBoyko Месяц назад

    So many UFOs 😂

  • @Spherical_Cow
    @Spherical_Cow Месяц назад +1

    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
      @frasercain  Месяц назад +7

      It was more about the acoustics of the room, unfortunately.

    • @mikeharrington5593
      @mikeharrington5593 Месяц назад +2

      You could choose subtitles ?

    • @spellkowski6996
      @spellkowski6996 Месяц назад

      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
      @frasercain  Месяц назад +3

      I've even sent microphones to guests in the past

    • @spellkowski6996
      @spellkowski6996 Месяц назад

      @@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

  • @jandlouhy6914
    @jandlouhy6914 Месяц назад

    So, interstellar "empty " space is more like pile of rubbish .

  • @kimdani1795
    @kimdani1795 Месяц назад

    Let us visit Their Cantine And pay with Bitcoins 😂😂

  • @alpheuswoodley8435
    @alpheuswoodley8435 Месяц назад +1

    Unsubscribed.

    • @JoshShultzandKids
      @JoshShultzandKids Месяц назад

      Your contribution is appreciated

    • @luvit579
      @luvit579 Месяц назад

      I didn’t appreciate the guests attack on Doctor Loeb’s work either, but this is generally an informative channel.

  • @epzapp
    @epzapp Месяц назад

    Fantastic interview!