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

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  • čas přidán 10. 06. 2024
  • 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:
    / universetoday
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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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    Read by 60,000 people every Friday. Written by Fraser. No ads.
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    📩 CONTACT FRASER
    frasercain@gmail.com
    ⚖️ LICENSE
    Creative Commons Attribution 4.0 International (CC BY 4.0)
    You are free to use my work for any purpose you like, just mention me as the source and link back to this video.
  • Věda a technologie

Komentáře • 494

  • @glyngreen538
    @glyngreen538 Před 7 měsíci +59

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

    • @MCsCreations
      @MCsCreations Před 7 měsíci +2

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

    • @sithraeil
      @sithraeil Před 7 měsíci +1

      @@MCsCreations talk how?!

    • @MCsCreations
      @MCsCreations Před 7 měsíci +4

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

    • @catsthinkmynameisclaude6955
      @catsthinkmynameisclaude6955 Před 7 měsíci

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

    • @JAGzilla-ur3lh
      @JAGzilla-ur3lh Před 7 měsíci +2

      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
    @stephaniemcguire Před 7 měsíci +74

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

    • @JenniferA886
      @JenniferA886 Před 7 měsíci +2

      Agreed 👍👍👍

    • @zonnytiger2371
      @zonnytiger2371 Před 7 měsíci +3

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

    • @willemvandebeek
      @willemvandebeek Před 7 měsíci +1

      Yes, thank you for sharing your passion, Fraser.

    • @JenniferA886
      @JenniferA886 Před 7 měsíci

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

    • @nickuber2573
      @nickuber2573 Před 7 měsíci +1

      Enthusiastic for nasa cartoons.

  • @FleshWizard69420
    @FleshWizard69420 Před 7 měsíci +13

    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
    @vhhawk Před 7 měsíci +17

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

    • @thentil
      @thentil Před 7 měsíci +1

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

    • @joyboricua3721
      @joyboricua3721 Před 7 měsíci

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

    • @rogerwilco1777
      @rogerwilco1777 Před 7 měsíci

      *lavha

    • @HebaruSan
      @HebaruSan Před 7 měsíci +1

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

    • @ergohack
      @ergohack Před 7 měsíci

      @@joyboricua3721A bit more like law-vuh

  • @foolishillusionz6112
    @foolishillusionz6112 Před 7 měsíci

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

  • @MCsCreations
    @MCsCreations Před 7 měsíci +1

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

  • @Raz.C
    @Raz.C Před 7 měsíci

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

  • @chefty88
    @chefty88 Před 7 měsíci +1

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

  • @aformalevent
    @aformalevent Před 7 měsíci +3

    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
    @remixcnk Před 7 měsíci

    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
    @truman42746 Před 7 měsíci

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

  • @timelessninja
    @timelessninja Před 7 měsíci

    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
    @saeedafyouni619 Před 7 měsíci

    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

  • @mecha-sheep7674
    @mecha-sheep7674 Před 7 měsíci +3

    "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.

  • @TechNed
    @TechNed Před 7 měsíci +1

    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
    @noelstarchild Před 7 měsíci +1

    You keep my interest bubbling Mr Cain. Rock on.

  • @irontusk341
    @irontusk341 Před 7 měsíci +27

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

    • @markmcdougal1199
      @markmcdougal1199 Před 7 měsíci +2

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

    • @irontusk341
      @irontusk341 Před 7 měsíci +2

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

    • @merky6004
      @merky6004 Před 7 měsíci +1

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

    • @ZionistWorldOrder
      @ZionistWorldOrder Před 7 měsíci

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

    • @themarvelousemafia4457
      @themarvelousemafia4457 Před 7 měsíci

      @@ZionistWorldOrder EXACTLY!

  • @antoniofajardo352
    @antoniofajardo352 Před 7 měsíci

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

  • @DanielVerberne
    @DanielVerberne Před 7 měsíci +6

    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.

  • @chuckkimber2773
    @chuckkimber2773 Před 7 měsíci +8

    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 Před 7 měsíci +1

      DIY base building, BOSS STYLE!
      :)

  • @markmcdougal1199
    @markmcdougal1199 Před 7 měsíci +12

    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?

  • @neliotuga
    @neliotuga Před 7 měsíci

    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
    @JohnDunne001 Před 7 měsíci +1

    Love these updates!! Thank you

    • @JenniferA886
      @JenniferA886 Před 7 měsíci +2

      Same here… love these updates 👍👍👍

  • @girolamocastaldo8653
    @girolamocastaldo8653 Před 7 měsíci

    This is gold, thanks for sharing!

  • @privateerburrows
    @privateerburrows Před 4 měsíci +1

    "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
    @maa6603 Před 7 měsíci +1

    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-zy6gm Před 4 měsíci

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

  • @disinclinedto-state9485
    @disinclinedto-state9485 Před 7 měsíci +2

    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  Před 7 měsíci

      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
    @JX3D Před 7 měsíci

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

  • @christopherkingsland4604
    @christopherkingsland4604 Před 7 měsíci

    Wow - such amazing news !

  • @bbbenj
    @bbbenj Před 7 měsíci

    An amazing episode ❤

  • @StickCannon
    @StickCannon Před 7 měsíci +1

    I was NOT ready for this notification

    • @oberonpanopticon
      @oberonpanopticon Před 7 měsíci +1

      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?

  • @robertmason5676
    @robertmason5676 Před 7 měsíci

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

  • @MaximRedin
    @MaximRedin Před 3 měsíci

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

  • @susanhettick7036
    @susanhettick7036 Před 7 měsíci

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

  • @eamonnfanton2165
    @eamonnfanton2165 Před 7 měsíci +2

    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

  • @garman1966
    @garman1966 Před 7 měsíci

    great show!

  • @karravarney1092
    @karravarney1092 Před 7 měsíci

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

    • @frasercain
      @frasercain  Před 7 měsíci +1

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

    • @karravarney1092
      @karravarney1092 Před 7 měsíci

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

  • @thentil
    @thentil Před 7 měsíci +3

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

    • @terryhayward7905
      @terryhayward7905 Před 7 měsíci +1

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

  • @user-es8bm1zs2s
    @user-es8bm1zs2s Před 7 měsíci

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

  • @lurkst3r
    @lurkst3r Před 7 měsíci +8

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

    • @KepleroGT
      @KepleroGT Před 7 měsíci

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

  • @Nickropz
    @Nickropz Před 7 měsíci +2

    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 Před 4 měsíci

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

  • @jameswilson5165
    @jameswilson5165 Před 7 měsíci

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

  • @AlexBarregon
    @AlexBarregon Před 7 měsíci

    Thanks Fraser. I love the blobs inside the Earth.

  • @hotrodsonulondon7111
    @hotrodsonulondon7111 Před 7 měsíci

    Excellent news, I'm waiting

  • @robertblixt9676
    @robertblixt9676 Před 6 měsíci

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

  • @Crushnaut
    @Crushnaut Před 7 měsíci

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

  • @hipser
    @hipser Před 7 měsíci

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

  • @ReinReads
    @ReinReads Před 7 měsíci

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

    • @frasercain
      @frasercain  Před 7 měsíci

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

  • @mickeyewhitlow
    @mickeyewhitlow Před 7 měsíci +1

    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.C Před 7 měsíci

    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
    @mattkrysto4682 Před 7 měsíci +2

    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  Před 7 měsíci +4

      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
    @davidgifford8112 Před 7 měsíci

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

  • @scottweidt9144
    @scottweidt9144 Před 7 měsíci

    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
    @xitheris1758 Před 7 měsíci +5

    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  Před 7 měsíci +4

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

    • @robertvelten4971
      @robertvelten4971 Před 7 měsíci

      So your detractors are razing Cain?

    • @rabmccudden683
      @rabmccudden683 Před 7 měsíci +2

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

    • @olivemd
      @olivemd Před 7 měsíci +1

      @@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 Před 7 měsíci +1

      @@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.

  • @nomad7358
    @nomad7358 Před 7 měsíci

    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

  • @vernalc2449
    @vernalc2449 Před 7 měsíci +1

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

  • @mikeharrington5593
    @mikeharrington5593 Před 7 měsíci +3

    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 Před 7 měsíci +1

      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?

  • @ZionistWorldOrder
    @ZionistWorldOrder Před 7 měsíci +1

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

  • @43lk
    @43lk Před 7 měsíci

    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?

  • @xtereox1
    @xtereox1 Před 7 měsíci

    Thank you :)

  • @AnarchoCatBoyEthan
    @AnarchoCatBoyEthan Před 7 měsíci

    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.

  • @markwentz8332
    @markwentz8332 Před 7 měsíci

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

  • @brucemckean2848
    @brucemckean2848 Před 7 měsíci

    Thanks

  • @michaelblacktree
    @michaelblacktree Před 7 měsíci +3

    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 Před 7 měsíci

      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 Před 7 měsíci

      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 Před 7 měsíci

      ​@@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 Před 7 měsíci

      @@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.

  • @kkgt6591
    @kkgt6591 Před 7 měsíci

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

  • @aliajellu
    @aliajellu Před 7 měsíci

    Simply excellent

  • @bretthathaway1951
    @bretthathaway1951 Před 7 měsíci

    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?

  • @nutyyyy
    @nutyyyy Před 7 měsíci

    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.

  • @johnbennett1465
    @johnbennett1465 Před 7 měsíci +6

    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 Před 7 měsíci

      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 Před 7 měsíci

      @@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.

  • @kitemg
    @kitemg Před 7 měsíci +1

    Wallpaper check :D

  • @mospeada1152
    @mospeada1152 Před 7 měsíci

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

  • @ShipwreckedMonki
    @ShipwreckedMonki Před 7 měsíci

    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?

  • @davidmurphy563
    @davidmurphy563 Před 7 měsíci

    "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!

  • @joyboricua3721
    @joyboricua3721 Před 7 měsíci

    Lava tubes sounds like a fun skit for Nickolodeon

  • @DanielVerberne
    @DanielVerberne Před 7 měsíci

    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
    @baduerra111baguerrra6 Před 7 měsíci

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

  • @TiagoTiagoT
    @TiagoTiagoT Před 7 měsíci +1

    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  Před 7 měsíci +1

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

  • @Interstate66
    @Interstate66 Před 7 měsíci

    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

  • @kevbone4809
    @kevbone4809 Před 7 měsíci

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

  • @TheFunkyKettle
    @TheFunkyKettle Před 7 měsíci

    I love this guy, excellent content as always

  • @supplychainoperationsresearch

    400K BABY!!!!

  • @Jareb-cu4cf
    @Jareb-cu4cf Před 7 měsíci +1

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

  • @markwilliamson9199
    @markwilliamson9199 Před 7 měsíci

    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  Před 7 měsíci

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

  • @VardaMusic
    @VardaMusic Před 7 měsíci

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

  • @AceSpadeThePikachu
    @AceSpadeThePikachu Před 7 měsíci

    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-ee6tr Před 7 měsíci

    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
    @warthog8784 Před 7 měsíci +3

    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 Před 7 měsíci +1

      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 Před 7 měsíci

      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 Před 7 měsíci +1

      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 Před 7 měsíci +1

      @@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 Před 7 měsíci +1

      @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
    @rudigerwolf9626 Před 7 měsíci

    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.

  • @MossMachine55
    @MossMachine55 Před 7 měsíci

    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?

  • @jespermikkelsen7553
    @jespermikkelsen7553 Před 7 měsíci +2

    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 Před 7 měsíci

      Good call

    • @BarbaryCorsair
      @BarbaryCorsair Před 7 měsíci +2

      In Layman's terms!

    • @j.campbell4497
      @j.campbell4497 Před 7 měsíci

      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

  • @Ithirahad
    @Ithirahad Před 7 měsíci

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

  • @jammin8300
    @jammin8300 Před 7 měsíci

    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

  • @Rorschach1024
    @Rorschach1024 Před 7 měsíci

    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.

  • @MsAbbyCat
    @MsAbbyCat Před 7 měsíci

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

  • @denvan3143
    @denvan3143 Před 7 měsíci

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

  • @charlesblithfield6182
    @charlesblithfield6182 Před 7 měsíci +1

    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.

  • @michaeljamesclarke
    @michaeljamesclarke Před 7 měsíci

    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?

  • @brianashdown4836
    @brianashdown4836 Před 7 měsíci +1

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

  • @Nomad77ca
    @Nomad77ca Před 7 měsíci +1

    American: Where's that black hole? Canadian: It's in Sagittarius eh.