HUGE Exoplanet Discovery // Ancient Planet Inside Earth // Betelgeuse Ate a Star?

Ғылым және технология

A new system found with 7 Earth and Super-Earth Sized planets, the remains of another planet inside the Earth, and it’s time to replace your wallpaper again with this new image of the Crab Nebula from JWST.
😍 1 Year of JWST Special:
• Everything NASA Discov...
🦄 Support us on Patreon:
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00:00 Intro
00:18 Sun-like star system with 7 planets
www.nasa.gov/general/scorchin...
02:54 Ancient planet inside Earth
www.caltech.edu/about/news/th...
04:11 Betelgeuse ate a Star?
www.universetoday.com/163998/...
06:16 Crab nebula by JWST
www.universetoday.com/163977/...
07:54 Vote results
• Three Stars Mysterious...
08:26 SagA* spinning as fast as possible
www.universetoday.com/163924/...
10:17 Rogue planet factories
www.universetoday.com/163940/...
12:19 Support us on Patreon
13:02 Lucy flyby
www.nasa.gov/image-article/na...
13:46 Map of ice on Mars
www.universetoday.com/163937/...
15:01 Collapsed lava chamber
www.universetoday.com/164015/...
16:08 Lava tubes for Mars exploration
Host: Fraser Cain
Producer: Anton Pozdnyakov
Editing: Artem Pozdnyakov
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⚖️ LICENSE
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Пікірлер: 495

  • @glyngreen538
    @glyngreen5387 ай бұрын

    Nice that even nebulas evolve into crabs - they get everywhere!

  • @MCsCreations

    @MCsCreations

    7 ай бұрын

    Wait until humans become crabs... Then we talk again. 🤨

  • @sithraeil

    @sithraeil

    7 ай бұрын

    @@MCsCreations talk how?!

  • @MCsCreations

    @MCsCreations

    7 ай бұрын

    @@sithraeil Like a good pair of crabs. How else?

  • @catsthinkmynameisclaude6955

    @catsthinkmynameisclaude6955

    7 ай бұрын

    Oh! Oh! A wise guy, eh? "Everything keeps evolving into crabs," eh??😅

  • @JAGzilla-ur3lh

    @JAGzilla-ur3lh

    7 ай бұрын

    No, no, you have it all backwards. It's actually crabs that evolve into nebulas. The nebula is the crab's final form. That's why everything wants to be a crab: to become a nebula. It's really beautiful, actually.

  • @stephaniemcguire
    @stephaniemcguire7 ай бұрын

    I must appreciate Fraser's enthusiasm for his "space news".

  • @JenniferA886

    @JenniferA886

    7 ай бұрын

    Agreed 👍👍👍

  • @zonnytiger2371

    @zonnytiger2371

    7 ай бұрын

    i love seeing people be enthusiastic about stuff, it feels like a rarer thing recently

  • @willemvandebeek

    @willemvandebeek

    7 ай бұрын

    Yes, thank you for sharing your passion, Fraser.

  • @JenniferA886

    @JenniferA886

    7 ай бұрын

    @@zonnytiger2371 so true… and even more so, considering the entire globe is on the brink of WW3

  • @nickuber2573

    @nickuber2573

    7 ай бұрын

    Enthusiastic for nasa cartoons.

  • @FleshWizard69420
    @FleshWizard694207 ай бұрын

    The idea of Betelgeuse consuming a companion makes me wonder what the hell spun up Achernar. That one's a gigantic Beyblade of a star 😂

  • @vhhawk
    @vhhawk7 ай бұрын

    My favorite story of the week is Fraser explaining about his pronunciation of lava.

  • @thentil

    @thentil

    7 ай бұрын

    I can get over most of it, but paaasta instead of pahsta is really jarring 😵‍💫

  • @joyboricua3721

    @joyboricua3721

    7 ай бұрын

    Sounds about right to me... What would be the other pronounciation?

  • @rogerwilco1777

    @rogerwilco1777

    7 ай бұрын

    *lavha

  • @HebaruSan

    @HebaruSan

    7 ай бұрын

    My favorite answer of the week was, "No."

  • @ergohack

    @ergohack

    7 ай бұрын

    @@joyboricua3721A bit more like law-vuh

  • @foolishillusionz6112
    @foolishillusionz61127 ай бұрын

    First time finding this channel. Love your delivery and presentation. Subscribed. Looking forward to seeing more!!

  • @MCsCreations
    @MCsCreations7 ай бұрын

    Thanks for all the news, Fraser! 😊 My wallpaper is still the South Ring Nebula. Anyway, stay safe there with your family! 🖖😊

  • @Raz.C
    @Raz.C7 ай бұрын

    What a wonderfully informative little graphic @ about 1:00 That kind of stuff melts the bitter casing around my heart.

  • @chefty88
    @chefty887 ай бұрын

    Thank you Fraser, really love and appreciate the content. I’ll be headed to your patron very soon.

  • @JenniferA886

    @JenniferA886

    7 ай бұрын

    Same here 👍👍👍

  • @aformalevent
    @aformalevent7 ай бұрын

    Man I absolutely love your work. I've been listening since way back in the podcast days. I learned so much from you and the lady from bc. I remember learning about relativity and the speed of light through your bouncing tennis balls off of a train analogy while I was doing time pressure washing and somehow that made me quite this comment. Good job man. Well done, keep killing it with space science my friend!

  • @remixcnk
    @remixcnk7 ай бұрын

    I just recently found your channel, and I've been binging all day. It's 05:00 n i can't stop watching, your videos are very informative, n the editing is top notch!

  • @truman42746
    @truman427467 ай бұрын

    Great video Fraser! The Webb pic. of the Crab is amazing!

  • @timelessninja
    @timelessninja7 ай бұрын

    I've been listening to Astronomy Cast for the past few years, and somehow didn't realize you had a youtube channel. Stumbled on here by a wayward youtube recommendation, and it's good to finally put a face to the voice. Thank you for all the space news both through podcast and youtube videos. I'm loving these little bitesize weekly updates, and I just finished watching the video interview about Venus and tectonic plates that was fascinating. Anyway, just wanted to thank you for your impact on us space enthusiasts throughout the years.

  • @saeedafyouni619
    @saeedafyouni6197 ай бұрын

    great vid always love to hear some new about Betelgeuse, which was of course, my favorite space bite......it's "aboot" time eyy!!!! thanks Fraser and Universe Today

  • @TechNed
    @TechNed7 ай бұрын

    That "dark matter" comment was hilarious! I had the fleeting thought just before you mentioned it and I'd dismissed it just before you did! Actual matter would interact in more ways than just gravitationally.

  • @noelstarchild
    @noelstarchild7 ай бұрын

    You keep my interest bubbling Mr Cain. Rock on.

  • @mecha-sheep7674
    @mecha-sheep76747 ай бұрын

    "first, the good news" : I hate hearing that, because I immediately think about the bad news. And I guessed they would be just too hot.

  • @irontusk341
    @irontusk3417 ай бұрын

    7 planet system? Around a sunlike star? Beam me up scotty!!

  • @markmcdougal1199

    @markmcdougal1199

    7 ай бұрын

    Unless the find a few more in that system, better take some sun screen. :)

  • @irontusk341

    @irontusk341

    7 ай бұрын

    @@markmcdougal1199 with an SPF of about 10,000 :P

  • @merky6004

    @merky6004

    7 ай бұрын

    FC bringing us the Good Stuff. I’m in.

  • @ZionistWorldOrder

    @ZionistWorldOrder

    7 ай бұрын

    i cant be the only one wondering how far since he forgot to mention the distance

  • @themarvelousemafia4457

    @themarvelousemafia4457

    7 ай бұрын

    @@ZionistWorldOrder EXACTLY!

  • @antoniofajardo352
    @antoniofajardo3527 ай бұрын

    I'm becoming a fan. Exceptional content. Thanks!

  • @DanielVerberne
    @DanielVerberne7 ай бұрын

    Hi Fraser, so great to see you still in the game after all this time and doing such quality outreach. Are you able to explain to a layperson how TESS compares to the Kepler mission? I believe TESS looks at (or was looking at?) much closer and brighter stellar objects than Kepler? Are we still expecting results from either of these missions? Apologies in advance for the unintentional ignorance, parenting got in the way of my keeping up with things over recent years.

  • @markmcdougal1199
    @markmcdougal11997 ай бұрын

    Good show, thanks Fraser. Things are happening so fast now, can hardly keep up with it. Question: The Sag-A spinning at the physical limit of rotation and the resulting frame dragging -- if there was zero matter surrounding the spinning black hole, (say it ate everything in sight) would the frame dragging of the empty space around the black hole be a "drag" on the momentum of the spin?

  • @chuckkimber2773
    @chuckkimber27737 ай бұрын

    So send a metals heavy asteroid into Mars, where you want to build your base, then you have water _and_ metallic materials available onsite. 🤔

  • @DrNothing23

    @DrNothing23

    7 ай бұрын

    DIY base building, BOSS STYLE! :)

  • @neliotuga
    @neliotuga7 ай бұрын

    I just subscribed to universe today newsletter. Can't wait for Friday. I wish the space news show was longer. Just 10 minutes more. Once a month?

  • @JohnDunne001
    @JohnDunne0017 ай бұрын

    Love these updates!! Thank you

  • @JenniferA886

    @JenniferA886

    7 ай бұрын

    Same here… love these updates 👍👍👍

  • @girolamocastaldo8653
    @girolamocastaldo86537 ай бұрын

    This is gold, thanks for sharing!

  • @privateerburrows
    @privateerburrows4 ай бұрын

    "Kick out" (a planet) is strong language that might mislead people. A planet rotating around a star is held prisoner by the star's gravitation. In a two (or more) star system, it can happen that a second star can at some point be pulling the planet away from the primary star it orbits, weakening the gravitational trap, thus allowing the planet to slip away outwards from its usual orbit. The farther away it slips, the lower the gravitational attraction, and so it might escape altogether. It's more of a chance to escape than like getting kicked.

  • @maa6603
    @maa66037 ай бұрын

    Hi Fraser, love your show. A question popped in to my mind. If you travelled at the speed of light to let say to Proxima Centauri and then travelled directly back again. Would it take longer for the return journey than the outward journey? My gut says it would due to cosmic expansion over time, but what do you say? 😊

  • @DavidHauck-zy6gm
    @DavidHauck-zy6gm4 ай бұрын

    Thank You Fraser great info-keep it up-you are appreciated

  • @disinclinedto-state9485
    @disinclinedto-state94857 ай бұрын

    Hey, Fraser. Love your work! If we were to see the ring nebula from "the side", would it look the same? I.E. is it an expanding globe, or a disc? If a disc, what astronomical process results in a "disc-ways" explosion? Thanks.

  • @frasercain

    @frasercain

    7 ай бұрын

    I don't really know. There are some three-dimensional simulations of various planetary nebula and they do look more like spheres than rings. I think with the ring nebula it's a cylinder that we're seeing down one end of it

  • @JX3D
    @JX3D7 ай бұрын

    Spelling mistake in description: "04:11 Betelgeuse at a Star?" And keep up the good work. I enjoy watching it.

  • @christopherkingsland4604
    @christopherkingsland46047 ай бұрын

    Wow - such amazing news !

  • @bbbenj
    @bbbenj7 ай бұрын

    An amazing episode ❤

  • @robertmason5676
    @robertmason56767 ай бұрын

    Exceptional show, interesting and exciting topics, very professional . We really do live during a " Golden Age of Astronomy ". Thank You

  • @StickCannon
    @StickCannon7 ай бұрын

    I was NOT ready for this notification

  • @oberonpanopticon

    @oberonpanopticon

    7 ай бұрын

    I.. uh.. how? In what way were you unprepared to learn of this video’s existence? Were you just busy when you got the notif?

  • @MaximRedin
    @MaximRedin3 ай бұрын

    Nice video. Thank you. I like your narration also. Please keep filming. Btw I am watching you from Russia

  • @susanhettick7036
    @susanhettick70367 ай бұрын

    Fascinating! Fun news! unlike what we get on commercial media...

  • @garman1966
    @garman19667 ай бұрын

    great show!

  • @karravarney1092
    @karravarney10927 ай бұрын

    I love your content so much!! I listen to relax lol

  • @frasercain

    @frasercain

    7 ай бұрын

    Thanks a lot. I'm really glad you're enjoying it

  • @karravarney1092

    @karravarney1092

    7 ай бұрын

    @@frasercain Keep up the good work and thank YOU for sharing

  • @eamonnfanton2165
    @eamonnfanton21657 ай бұрын

    The piece about the remains of Thea inside earth is interesting. I always had a hunch that when that impact happened Thea might have embedded itself into the earth rather than being totally annihilated. Has anyone wondered why we have continents mostly on one side of the earth and a massive Pacific Ocean on the opposite side and why the Pacific is significantly deeper than the Atlantic? Well if Thea impacted where the Pacific is now is it not reasonable to conjecture this would be the result as an ancient earth that had a reasonably solid crust and Thea imbedding itself would destroy the crust on the impact side but as the crust would have to expand and fracture on the other we now have the continental plates. What would further support this is why was Pangea one huge continent covering just one side of the planet before tectonic action gave us the earth we have today? Surely it is reasonable to assume prior to Pangea the earth would have been formed relatively spherical with a generally even crust. That's what the physics would predict for any infant planet or moon

  • @jameswilson5165
    @jameswilson51657 ай бұрын

    I was hoping you would overlay that loooova cave with the NASA Wild guess of ice deposits. First time here. Subscribed.

  • @user-es8bm1zs2s
    @user-es8bm1zs2s7 ай бұрын

    Frame dragging is the coolest, trippyest thing ive heard of in a while

  • @AlexBarregon
    @AlexBarregon7 ай бұрын

    Thanks Fraser. I love the blobs inside the Earth.

  • @Nickropz
    @Nickropz7 ай бұрын

    Hi Fraser, If you could destroy a black hole by altering the charge or spin of the black hole, what would happen to the matter that previously crossed the event horizon? Would it essentially wink out of existence, or would the matter explode back into the universe?

  • @joecausey8508

    @joecausey8508

    4 ай бұрын

    Good question. It's almost the same question as what happens to the "stuff" that goes into a black hole.

  • @thentil
    @thentil7 ай бұрын

    You heard it here first, Betelgeuse is exploding tonight! I'm staying up all night to watch!

  • @terryhayward7905

    @terryhayward7905

    7 ай бұрын

    If it explodes tonight, you will have to wait 724 years ( approx ) before you see it, you might get a tad bored waiting.

  • @lurkst3r
    @lurkst3r7 ай бұрын

    My vote goes to the new exoplanet discovery. A sun like star with 7 super earth sized planets? Awesome!

  • @KepleroGT

    @KepleroGT

    7 ай бұрын

    Would be very interesting to see a Solar System-like system though. That still seems to be uncommon

  • @hotrodsonulondon7111
    @hotrodsonulondon71117 ай бұрын

    Excellent news, I'm waiting

  • @Crushnaut
    @Crushnaut7 ай бұрын

    Based on your description of this new system, I definitely won't be forgetting Trappist 1 lol

  • @hipser
    @hipser7 ай бұрын

    oh no i was halfway through your newest video when it went down!

  • @ReinReads
    @ReinReads7 ай бұрын

    You should never worry about your accent. People love it. It’s part of the reason Canadian’s are so popular on KZread.

  • @frasercain

    @frasercain

    7 ай бұрын

    Oh, I don't but I just need to give some people a trigger warning.

  • @robertblixt9676
    @robertblixt96766 ай бұрын

    Hi Fraser, Can rouge planets make hypothetical fast interstellar space travel to be hard or impossible? I am thinking about collision risk.

  • @mickeyewhitlow
    @mickeyewhitlow7 ай бұрын

    Interesting thought: if a solar system was orbiting a black hole in an elliptical oribit, it could sling one or more out of it's host stars gravitational influence. Supernova's could also expel some or all of their orbiting bodies.

  • @Raz.C
    @Raz.C7 ай бұрын

    Hi Fraser re - 4:50 ish, I believe an 8-star system is close to impossible to find in nature. 7 stars are common enough (despite being uncommon), but 8 stars are unheard of.

  • @mattkrysto4682
    @mattkrysto46827 ай бұрын

    Hi Frasier. Thanks for answering, I'm sure I'm not the only one who asked, but is there a why that goes along with that no to a rogue planet dark matter connection? Maybe you can explain. I can do my own research if you would like, but you are a brilliant communicator, and I'd be interested in the answer. Thanks. Love the show

  • @frasercain

    @frasercain

    7 ай бұрын

    Sure, planets account for less than 1% the mass of a star system. And, they interact with regular matter, reflect light, etc. So if there were 10x the mass of stars as rogue planets, we'd notice.

  • @davidgifford8112
    @davidgifford81127 ай бұрын

    JWST image of the Crab M1 looks closer to early drawings of the nebula than classical photographs! Interesting.

  • @scottweidt9144
    @scottweidt91447 ай бұрын

    Hello Fraser. I have a off topic question for you. If our moon is basically made 1:20 up of our Earth, than why is lunar dust the texture it is. To my knowledge we don't have soil like that on earth. Can you please explain? That would be great

  • @xitheris1758
    @xitheris17587 ай бұрын

    I find your Canadian accent interesting. It gives Canada a linguistic distinction from the US. Language is an important part of national pride. Don't be ashamed of it.

  • @frasercain

    @frasercain

    7 ай бұрын

    Oh, I'm not, but it's hilarious how many people will comment on how I say words wrong.

  • @robertvelten4971

    @robertvelten4971

    7 ай бұрын

    So your detractors are razing Cain?

  • @rabmccudden683

    @rabmccudden683

    7 ай бұрын

    If I was on KZread people wouldn’t have a clue what I’m saying 😅. My Northern Ireland accent is strong 😂

  • @olivemd

    @olivemd

    7 ай бұрын

    @@rabmccudden683 as bad as my Cape Breton accent? People on the west coast of 🇨🇦 have trouble understanding what I’m saying half the time.

  • @xitheris1758

    @xitheris1758

    7 ай бұрын

    @@rabmccudden683 You should literally record yourself reading the dictionary and saying every phrase and figure of speech you can think of! Strong native-speaker accents are dying out. Be proud of your linguistic heritage! Archives are being set up to preserve the memories of accents like yours, and there are many important and practical uses for protecting data about where you grew up and where you've lived, in relation to how you sound.

  • @vernalc2449
    @vernalc24497 ай бұрын

    Some good information. I must say that I had never heard Betelgeuse pronounced as "ba-tlel-juice" before. Interesting.

  • @nomad7358
    @nomad73587 ай бұрын

    Hello Fraser, if we lived in the Star Trek universe and earth wasn’t visited what year in our history would we have discovered advanced civilisations on Vulcan, Andorra and Qo’noS etc and warp ships that would of been crossing our sector? Thanks love the channel

  • @xtereox1
    @xtereox17 ай бұрын

    Thank you :)

  • @mikeharrington5593
    @mikeharrington55937 ай бұрын

    Interesting that the Theia-like elements remained intact-ish & didn't get stirred up into Earth's core. Could these "separate chunks" of heavier elements be why Earth has such a strong magnetic field, & could this be another factor which supports the rare Earth hypothesis ?

  • @Pushing_Pixels

    @Pushing_Pixels

    7 ай бұрын

    Given there's two blobs on opposite sides of the core, I'd say there probably was a lot of material that was absorbed into the core itself. We believe the core is almost all Iron and Nickel, but who knows what else is there that came from the impact object?

  • @43lk
    @43lk7 ай бұрын

    Question; is there any newest estimation of probable size of the Universe? I know there are measurements of ~94 bln light years of observable Universe and some trigonometrical measures of curvature of space, are there any new estimations?

  • @AnarchoCatBoyEthan
    @AnarchoCatBoyEthan7 ай бұрын

    Thinking about Betelgeuse and how it might have eaten a star gets me thinking about those long thought about insane Quasi-stars (not to be confused with quasars lol thanks astronomers) which is a star with a black hole core. I think that’s the sickest thing ever, and I wonder if there’d be anyway to tell that one apart from a regular old really super incredibly massive star. Obviously they’re all basically dead at this point and even if we do see some stuff really far back in time we can’t make out individual stars from the beginning of the universe. BUT if the stars align (literally) and a quasi star was lensed into enough resolution to actually make out could we tell what it was? Or from the outside would it just seem a big ol star? Thanks Fraser, love your work as always.

  • @brucemckean2848
    @brucemckean28487 ай бұрын

    Thanks

  • @markwentz8332
    @markwentz83327 ай бұрын

    17:16 that MARS series on Nat Geo that lasted a couple of seasons a few years back used this idea in the show

  • @ZionistWorldOrder
    @ZionistWorldOrder7 ай бұрын

    but how far away is it? i didnt hear distance mentioned, a mighty important detail..

  • @ZionistWorldOrder

    @ZionistWorldOrder

    7 ай бұрын

    ​@BernieGore-fs2is😭

  • @jeffpratt6355

    @jeffpratt6355

    7 ай бұрын

    4672 light years

  • @aliajellu
    @aliajellu7 ай бұрын

    Simply excellent

  • @frasercain

    @frasercain

    7 ай бұрын

    Thanks a lot

  • @nutyyyy
    @nutyyyy7 ай бұрын

    Very big discovery if confirmed - it's one thing to find a system like trappist but a G or F type star with such a planetary system is interesting even if life is very unlikely.

  • @kkgt6591
    @kkgt65917 ай бұрын

    Hi Fraser, you as a space journalist who is following and reporting on JWST news , if given time where would you point the telescope.

  • @michaelblacktree
    @michaelblacktree7 ай бұрын

    Regarding the magnetic field of a black hole... is the field generated in the black hole itself, or in the accretion disc? I'm guessing in the disc, because if it's generated inside the black hole, the magnetic field lines would have to escape the event horizon. And I don't think that's possible? Or if I'm wrong, I'd love to see how that works.

  • @tonywells6990

    @tonywells6990

    7 ай бұрын

    The magnetic field is generated by the charged particles orbiting outside the black hole, in the accretion disk. The charge inside a black hole should be zero, as it should quickly neutralize.

  • @jht3fougifh393

    @jht3fougifh393

    7 ай бұрын

    I don't know how I never considered this. You're right in that it isn't immediately intuitive. My knee-jerk reaction is that it can't be from the event horizon inward, right? Like you said. But then, before that boundary is still what we would call the black hole, it's just that it has that hyperbolic trajectory afterward. If you think of a black hole strictly as the singularity itself, it still is the source either way, just indirectly. Regardless, we know that accretion disks have magnetic fields, so it'd be easy to brush it off and leave it at that. But let's not! More to the point, I guess the question would be whether the warping itself is the source, or the matter outside that's caught in the process? But we know the field is a result of activating charge... that happens AROUND the thing happening, like a property of space itself. Similarly, mass concentrating so much that it twists up space is a black hole, happening AROUND the singularity, which is forever within its own frame. Well luckily, it isn't a chicken or egg thing, so the answer is the black hole itself (what it took to make it) rather than what's being fed on after should be able to retain original properties, right? Black holes can't form until there's an insane concentration of matter in the first place. I mean, if mass is existing within a black hole (of course), and that matter was charged, then the energy is there even if you can't see anything radiating outward... so if it's there, the field is going to be there. It won't "escape" the singularity, it'll simply be a property of it. Black holes are a distortion of spacetime itself, but they have mass and may well have spin & charge as inherent properties. Theoretically, just going by logic, why can't they have fields...? The matter inside can't "escape" but we detect the effects thanks to the gravitational field. If the magnetic field is the effect on space, and the "hole" isn't some object but rather the warping of space (gravity), then the issue is with distortion/perception, not property/function. That is to say, it's still there a priori. At least that's how I am imagining it. I'm not a physicist (not even close), so maybe sometime who knows what they're talking about could come and set us straight on this issue! ... All that being said, I realize I veered off into vague notions, here. Any strong magnetic fields that we detect would certainly be due to the accretion disk. It only makes sense that anything farther in wouldn't be observationally consequential (existing or not).

  • @jht3fougifh393

    @jht3fougifh393

    7 ай бұрын

    ​@@tonywells6990 But if there's something to neutralize, there's charge, right? If only briefly - but that means it would theoretically exist. I'm not talking stability, just how realistic the property manifesting at all would be, if that makes sense. Btw I'm coming at this from a layman's perspective, using abstract reasoning, so forgive me if I sound naive.

  • @tonywells6990

    @tonywells6990

    7 ай бұрын

    @@jht3fougifh393 Yes black holes can have a charge but practically that charge would be quickly neutralized by opposite charges falling in, since the charges surrounding it (eg. from a plasma) would be add up to zero.

  • @kitemg
    @kitemg7 ай бұрын

    Wallpaper check :D

  • @bretthathaway1951
    @bretthathaway19517 ай бұрын

    Has there been any star that rejuvenates itself after it Novas; i.e., recollects that material it ejected? If not, what has been observed regarding the remnants to create new stars or planetary masses?

  • @joyboricua3721
    @joyboricua37217 ай бұрын

    Lava tubes sounds like a fun skit for Nickolodeon

  • @johnbennett1465
    @johnbennett14657 ай бұрын

    Fraser, here is a question for your experts. Can having one star inside another stir it up enough to move more hydrogen into the core? I.e. give it a longer lifetime.

  • @Jamex07

    @Jamex07

    7 ай бұрын

    A star that is consumed by another star will collapse towards a single center of gravity due to dynamical friction. It will not continue to orbit inside that other star. It can increase the spin of that star though. Like a figure skater pulling in their arms to spin faster, as the matter spirals towards the star's core it will increase the stars rate of spin. This in turn increases the mixing of material within the star. Although the affect is very small, the stars increased mass alone means it will progress through its stellar evolution more quickly. But more spin increases that rate even more. Meaning it will die sooner, not live longer.

  • @johnbennett1465

    @johnbennett1465

    7 ай бұрын

    @@Jamex07 thanks for the information. Fraser was talking about the case where the second star continued to orbit in the bloated outer layer. This is a different case from the one you explained. It may well have similar results. I was just wondering if it might stir up the star without adding to its mass.

  • @mospeada1152
    @mospeada11527 ай бұрын

    I think the idea of using the lava tubes as habitats makes better sense than being on the surface.

  • @ShipwreckedMonki
    @ShipwreckedMonki7 ай бұрын

    I know there are several logistical issues involved, not least where to get the air for the giant fan, but if we got a giant fan and blew away the surface dust on the moon what would be underneath? How deep does the dust go?

  • @DanielVerberne
    @DanielVerberne7 ай бұрын

    Regarding imaging of the Orion Nebula, can anyone advise whether JWST is able to image so-called 'proplyds', as Hubble has been able to?

  • @baduerra111baguerrra6
    @baduerra111baguerrra67 ай бұрын

    Hi Frazier ,love you’re video’s but ,about Trappist one ,it’s not new they discovered it quite a time ago ,please explained 😊!

  • @davidmurphy563
    @davidmurphy5637 ай бұрын

    "And people are wondering could that be an explanation for dark matter and the answer is no" I probably shouldn't have chuckled as much as i did at this!

  • @Interstate66
    @Interstate667 ай бұрын

    Hey Fraser! About the rogue planets; since the discovery I think about them... I thought maybe it is just common that planets appear everywhere. But maybe I'm total wrong how I think about since I haven't studied astronomie or something related. Q: Is it maybe possible that planets forming just everywhere is many times more common than we thought? I mean... Maybe most of the mateial in Galaxies just build up planets over planets and only sometimes there is enough material to form a sun or even a whole sun-system...? Could it be or I am totally on the wrong rail here? Thank you and your team so much anyway for all the good news, interviews and all stuff about this universe! :D

  • @TiagoTiagoT
    @TiagoTiagoT7 ай бұрын

    Are those Thea lumps inside Earth static? Do they bob about? Could those asymmetries and overhangs lead to some eventual toppling or even braking of parts of those lumps causing extreme lava tsunamis? Do they fight the flow of magma or are things kinda stagnant at those depths?

  • @frasercain

    @frasercain

    7 ай бұрын

    Yeah, I got the impression that they're moving around inside the planet over long periods of time

  • @supplychainoperationsresearch
    @supplychainoperationsresearch7 ай бұрын

    400K BABY!!!!

  • @TheFunkyKettle
    @TheFunkyKettle7 ай бұрын

    I love this guy, excellent content as always

  • @kevbone4809
    @kevbone48097 ай бұрын

    Those pronunciations weren’t too bad. It’s the word ‘about’ that cracks me up 😂 Great video as always though, thanks 🙂

  • @markwilliamson9199
    @markwilliamson91997 ай бұрын

    Always good to see new exo solar planets. I am confused, didn’t you say Kepler can only look at red dwarfs? Yet this one is bigger than sol?

  • @frasercain

    @frasercain

    7 ай бұрын

    This was found before it lost its reaction wheels. But only recently confirmed.

  • @Jareb-cu4cf
    @Jareb-cu4cf7 ай бұрын

    concerning the 7 planets star system. name : Kepler-385 , distance : 4670 light-years away, age : 3,3 Gyr (+- 1,5)

  • @VardaMusic
    @VardaMusic7 ай бұрын

    I admit to laughing at “lava tubes” - also was going to ask where you are from but you answered that. :)

  • @AceSpadeThePikachu
    @AceSpadeThePikachu7 ай бұрын

    I how we get a closer look at that sun-like star you mentioned in the beginning. If it does have more planets further out, that could be huge. Or maybe we'll find even more systems like it in the Kepler data. What I'd like to know about Sagittarius A*'s spin is...HOW did it get spinning so fast? It's a very quiet black hole by super-massive black hole standards and while there is evidence it was active in the past (that evidence being the Fermi bubbles), it's clear it was never a full-blown quasar otherwise our solar system likely never could have formed.

  • @johnsmith-ee6tr
    @johnsmith-ee6tr7 ай бұрын

    1st time here , I like the content. What if a rogue black hole passed near, relative terms, to beatjuice that gave it it's spin

  • @warthog8784
    @warthog87847 ай бұрын

    Hi Fraser, I love your videos. Here's a question for you.... By the time we actually have a colony on Mars, how many generations do you think it would take for the human body to start mutating due to the differences between Earth and Mars, and what do you think those mutations would be?

  • @alangarland8571

    @alangarland8571

    7 ай бұрын

    It depends on which mutations would confer an advantage to survival and reproduction. Since a Mars colony would be artificial and dependant on support from Earth and not on individuals ability to exist in the actual Mars environment itself, it's hard to say which factors would play a part in natural selection, but I guess anyone born able to survive better in a lower amount of oxygen would have an advantage.

  • @musicboy2003

    @musicboy2003

    7 ай бұрын

    I think the effects of low Mars gravity would be evident after one generation. Bone density would begin decreasing incrementally. Longer, leaner body typology after several generations. Getting out of this solar system will take centuries or even longer. Colonists born on Mars and the moons of Jupiter will not be able to withstand the gravity of earth without possibly some sort of exoskeleton to support their bodies.

  • @DanielVerberne

    @DanielVerberne

    7 ай бұрын

    Interesting question. As a layperson I'd be skeptical of whether natural selection would have time to enact any real selective pressure to our breeding success and that we'd instead be more likely to have artificially selected for traits. Although on the other hand, we know the Martian surface is rife with potential DNA-altering elements; cosmic rays, radiation, chemically-reactive regolith, etc, so maybe Mars could indeed be a source of naturally-occurring mutations. I would tend to think the fastest way to see the effects of any Mars-driven mutations would be to witness the success or otherwise of the first infants born on that planet. This sounds almost comically far-fetched to me at the present but I'd be a fool to say it won't happen.

  • @mj2745

    @mj2745

    7 ай бұрын

    @@DanielVerberne And would those children born on Mars be ever able to go back to Earth? Given that Mars Gravity is less than ours, bone structure and density will suffer. I once heard somewhere that anyone born on Mars would never be able to withstand Earth's gravity. Is this true Fraser?

  • @DanielVerberne

    @DanielVerberne

    7 ай бұрын

    @mj2745 that's a very valid question - perhaps being Mars-born will prove a barrier to ever living in Earth gravity conditions. The problem is exacerbated for a child born in the very shallow gravity well of the Moon, but at least Earth is just a short journey away so having a newborn transition back to 1G is easier.

  • @rudigerwolf9626
    @rudigerwolf96267 ай бұрын

    Fraser, question for you... If Black Holes are immensely dense aggregations of matter (not arguing that model), how does the Black Hole differ from the early universe immediately after the big bang... when the universe was very small (and very dense)? Thanks.

  • @jespermikkelsen7553
    @jespermikkelsen75537 ай бұрын

    Excellent video as usual. 8:32 When a black hole is formed, according to the theory, a singularity is created in the middle, where all the mass is gathered at a point where the radius goes towards 0 - i.e. the moment of inertia also approaches 0, and the angular velocity must therefore increase accordingly to maintain the angular momentum. This means that the angular velocity of the singularity goes towards infinity. So how can a black hole have a finite angular velocity?

  • @BarbaryCorsair

    @BarbaryCorsair

    7 ай бұрын

    Good call

  • @BarbaryCorsair

    @BarbaryCorsair

    7 ай бұрын

    In Layman's terms!

  • @j.campbell4497

    @j.campbell4497

    7 ай бұрын

    You have to understand the singularity is probably just an artifact. of our ignorance. any time you have an infinity pop out of an equation something is wrong. Theres no reason to assume that the singularity is in fact real. It will take a working theory of quantum gravity to describe what lies beneath the event horizon and make the singularity disapear

  • @MossMachine55
    @MossMachine557 ай бұрын

    Hello fraser! I've got a question, do we know if Venus ever had a moon? Are their any notable craters and research to suggest that it may of once had a moon?

  • @jammin8300
    @jammin83007 ай бұрын

    Q? Regarding that lava tube on Mars, do we have an idea of source of that image? Which volcano or core responsible? Estimated age it was created, thanks to everyone involved in this excellent channel

  • @Ithirahad
    @Ithirahad7 ай бұрын

    ...So, definitely DON'T forget about TRAPPIST-1.

  • @Rorschach1024
    @Rorschach10247 ай бұрын

    I've been saying that the density and magnetic anomalies in the mantle were remnants of Thera for a couple of years now. So this doesn't shock me in the least.

  • @denvan3143
    @denvan31437 ай бұрын

    The crab nebula wallpaper is nice, but do you have the lobster nebula, the shrimp nebula and the cocktail sauce

  • @MsAbbyCat
    @MsAbbyCat7 ай бұрын

    Question: How did the Theia impact change the orbit or rotation dynamics of Earth?

  • @charlesblithfield6182
    @charlesblithfield61827 ай бұрын

    I would love to have observed the collision of the mars sized object with proto earth with the knowledge of what would later develop out of the results of this maelstrom.

  • @brianashdown4836
    @brianashdown48367 ай бұрын

    Book by Larry Niven and Jerry Pournelle called The Mote in God’s Eye is brought to mind with the Betelgeuse idea.

  • @michaeljamesclarke
    @michaeljamesclarke7 ай бұрын

    I have a question a bout Dard Energy. Given that energy exists in some form or anther is the u ivers just another SNAPSHOT of all that is possible?

  • @sthulander1
    @sthulander17 ай бұрын

    I gotta apologize for a really dumb question, Fraser . . . um, well - I've been watching lately a whole bunch of ''Frasier'' comedy videos. They are spectacularly funny, well acted, written, directed, edited. And, I regularly watch YOUR VIDEOS, Fraser. So, for the (I'm sure) millionth time you've been asked . . . How is it, your name is so familiar and similar?

  • @frasercain

    @frasercain

    7 ай бұрын

    I had the name first. So ask the people who wrote Cheers I guess.

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