When will Alien Life be Found on Exoplanets?

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  • Опубліковано 24 гру 2024

КОМЕНТАРІ • 252

  • @exoplanets
    @exoplanets 4 роки тому +39

    Great video. I hope we find alien life soon !!

    • @ronschlorff7089
      @ronschlorff7089 4 роки тому

      It's getting harder and harder at the US southern border due to our great big Wall!! :D

    • @damn671
      @damn671 4 роки тому +2

      Look at the mirror and you'll see one

    • @felipemoraisoliveiracampos4497
      @felipemoraisoliveiracampos4497 3 роки тому +1

      I hope, I’ll be alive when it happens.

  • @Whataboutit
    @Whataboutit 4 роки тому +40

    Finally had the time to watch the whole video! I am so extremely looking forward to your discoveries with JamesWebb! Thank you, Ryan, for showing us alien worlds!

    • @martiancolonist
      @martiancolonist  4 роки тому +8

      Thanks for your support Felix! It was great to have the chance to combine my research with my passion for UA-cam 🙂🚀

    • @williampatrickwoods
      @williampatrickwoods 4 роки тому

      You guys both Rock! I just finished watching Felix's live streams of the Starship launch and he mentioned how you supported him when he was starting his channel; that's awesome. I love how supportive the space community is!
      I've been saving up for the last few years to quit my job and start my own UA-cam channel promoting Mars Colonization, and with Covid I recently followed through with that plan. I'm converting my living room into a studio and will hopefully be getting some videos out in the new year.
      Could you recommend some gaps that need filling in the Mars Colonization space? I was thinking about doing in depth research and coverage of all things colonization; specifically what we will actually do when we get there, what problems need solving, who is working on them, etc.
      Any advice would be greatly appreciated!! And please, keep up the good work :)
      Ps. Although I want to prove myself with my own videos first, I'd be happy to work on some kind of collaborative work; I know Felix is considering starting a weekly vlog, just let me know if there is any way I could help either of you.

    • @martiancolonist
      @martiancolonist  4 роки тому

      @@williampatrickwoods you should check out the Nexus Aurora community. They have ongoing discussions on pretty much every topic surrounding Mars colonisation, which would therefore serve as a good research ground.

    • @prashpatel6436
      @prashpatel6436 3 роки тому

      @@williampatrickwoods stay positive and you do it 💪🏼🦧

  • @BrentsTreehouse
    @BrentsTreehouse 3 роки тому +5

    I carried Sagan's Cosmos everywhere when I was in grade 7, a big heavy book that I took out of my backpack to read when I had any extra time.

  • @Asphalt209
    @Asphalt209 4 роки тому +9

    Hello Dr. Ryan, just wanted to tell you how thoroughly I enjoyed this amazing video. Anticipating amazing researches once the telescope is complete. Your narration is beautiful.

  • @sleepyboi8060
    @sleepyboi8060 4 роки тому +9

    Also this is top tier content. Like fucking top tier man. You deserve 100ks more subs and views. This is amazing.

  • @Cscuile
    @Cscuile 4 роки тому +8

    Coming back to this, I still can't believe it only has 12k views. It deserves to have millions.

    • @martiancolonist
      @martiancolonist  4 роки тому +2

      Must not have pleased the almighty UA-cam algorithm, I'm afraid.

    • @Cscuile
      @Cscuile 4 роки тому +2

      ​@@martiancolonist YT is always unkind to YTbers who upload infrequently but of high quality. Here is what I would recommend you try that could help. YT seems to love simple thumbnails. The simpler the better! Try to make it stand out from the sea of content. Think of it as the purple sunflower among the field of yellow sunflowers. As for titles, they seem to follow certain trends. I thought the title you used here was perfect, but perhaps you just got unlucky. Instead of "When will Alien Life be Found on Exoplanets" perhaps you could say something like "How James Webb will Discover Life", "How Alien Life can/will be Found", or "How we will confirm Alien Life". The key is to be as simple and catchy as possible. Perhaps there are better ones. I hope that brings some insight to the wonder of the YT algorithm!

    • @martiancolonist
      @martiancolonist  4 роки тому +2

      @@Cscuile funnily enough, for this video I did try a simpler thumbnail for precisely this reason. The more unclear one on my previous video got 100x more views, so I'm not sure how valid the standard advice is in practice...

    • @Cscuile
      @Cscuile 4 роки тому +2

      @@martiancolonist Yeah. On paper it sounds good, but in practice there is a lot of luck involved. So with that, I should say that I really do wish your next video luck in pleasing the almighty ;D

    • @nishafaiz1541
      @nishafaiz1541 3 роки тому

      @@martiancolonist 75 I 888

  • @Nomad-pk2xz
    @Nomad-pk2xz 3 роки тому +1

    It really is great having real researchers taking the time to inform us on these fascinating topics.

  • @obaidurrahmanprahelika1n2
    @obaidurrahmanprahelika1n2 3 роки тому +1

    “Considering the vastness of this universe, life would only exist on Earth and nowhere else sounds quite unreasonable. Let’s understand the logic behind the possibility of extra-terrestrial life-forms in this following way: everything that we know of this universe, are known to exist in numbering more than one, like for example, we know for a fact that, there are more than one stars, (more than one) galaxies, (more than one) black holes, (more than one) nebula, (more than one) solar systems, (more than one) planets, (more than one) comets, asteroids, quasars, pulsars, so and so and so, on and on and on. Therefore, if everything in this universe exist in numbering more than one, (in fact, most are known to exist in billions to even more), then, why there should be only one planet in the universe like that of earth, a planet that is perfect for the sustenance of life? If the very natural order that built and evolved this universe, where all that exist (and ever existed), exist in billions and billions in number, then shouldn’t there be more than one planet like that of earth in this universe, the very cosmos where everything is in their millions to billions to even more? If the natural system that dictates the laws of the universe, the very laws which have spawned so many items in their billions, therefore, that same natural system would allow only and only one life-hosting planet, i.e. the earth, seems like an anomaly, and against the basic rule of the same natural system of the universe, which houses so many of its creations in vast numbers. So, with that logic, if there are more than one stars, (more than one) planets, (more than one) solar systems, (more than one) gas giants, (more than one) black holes, (more than one) galaxies, therefore, there should be more than one life hosting planet like earth out there in this vast universe. It’s just common sense, and it’s that simple.”
    To read more, download the book, “The Search for Extra-terrestrial Life in the Universe” from: www.academia.edu/34438059/Extraterrestrial_Life_SETI_Alien_Life_UFO_Life_in_the_Universe_Astronomy

  • @davidgrim9853
    @davidgrim9853 4 роки тому +5

    Your content is always top notch!

  • @bjarnes.4423
    @bjarnes.4423 4 роки тому +4

    Since exoplanets around white dwarfs are easy to detect, yet just one has been found, they seem to be quite rare this close

    • @martiancolonist
      @martiancolonist  4 роки тому +2

      It turns out that previous missions (like Kepler) couldn't detect planets around white dwarfs because their observing frequency was too low. So planers around white dwarfs could actually be rather common, as we have only just started seriously searching for them.

    • @bjarnes.4423
      @bjarnes.4423 4 роки тому +2

      @@martiancolonist whats the observing frequency and why is it different for white dwarfs?

    • @martiancolonist
      @martiancolonist  4 роки тому +2

      @@bjarnes.4423 it's how often you take an exposure with the telescope. If you take an image every 30 minutes, it's easy to miss an event that lasts 2 minutes (a white dwarf planet transit). So you need to frequently count how much light the star is emitting to catch these short events.

    • @bjarnes.4423
      @bjarnes.4423 4 роки тому +3

      @@martiancolonist Right, a Venus transit takes many hours so it'd be much easier to spot. The JWST can only check the planet once it has been found, but how do we find more planets around White Dwarfs? TESS doesnt seem to be able to do it

    • @martiancolonist
      @martiancolonist  4 роки тому +2

      @@bjarnes.4423 TESS is actually how we first found WD 1856b. A new high-cadence mode with 20 second exposures has just been enabled for the new cycle of observations. A TESS program dedicated to searching for these white dwarf planets started in July, so we should know shortly.

  • @TheFuturistTom
    @TheFuturistTom 4 роки тому +6

    I’ve been watching Martian Colonist for a while now! They’ve inspired me to make my own channel!!

  • @martiancolonist
    @martiancolonist  4 роки тому +6

    It's incredible knowing that we could be on the verge of finding life beyond the solar system.
    Please feel free to let me know any questions you have about the search for life in the Universe. I'll be checking the comments regularly, and can't wait to hear your thoughts!

    • @exoplanets
      @exoplanets 4 роки тому +6

      Great video!

    • @scottdufferland
      @scottdufferland 4 роки тому +2

      Amazing that you mentioned phosphine!

    • @martiancolonist
      @martiancolonist  4 роки тому +2

      @@scottdufferland I saw a talk at an exoplanet conference in 2018 all about phosphine as a possible biosignature in exoplanet atmospheres. Can't say I expected signs of it to show up on Venus first though!

  • @puff-justincorbitt1656
    @puff-justincorbitt1656 3 роки тому +2

    Amazing insight! A little on the quiet side tho. Had to turn volume up.

  • @shotgunblast28
    @shotgunblast28 3 роки тому +2

    I really enjoyed your video. I’m a new subscriber. I’m impressed by your organization and the manner in which you explain things. Thank you for your videos

  • @TraditionalAnglican
    @TraditionalAnglican 4 роки тому +1

    One slight problem with observing planets as close to white dwarfs as the one you used as an example - If it had been anywhere near the hypothesized orbit, it would’ve been burned up, melted & consumed by its parent star. Even if it had been orbiting in the star’s original habitable zone, it’s atmosphere would’ve been burned off or blown off as Mars’ atmosphere was.

    • @martiancolonist
      @martiancolonist  4 роки тому

      Absolutely. You would be looking for planets that had originally existed in the outer star system, perhaps as moons of a gas giant, and migrated inwards after the red giant phase.

  • @lakshaygupta9061
    @lakshaygupta9061 4 роки тому +5

    Yours is one terrific space channel, keep it up!

  • @ChristopherHitchens3.14
    @ChristopherHitchens3.14 3 роки тому +2

    Excellent content, really enjoyed the insight provided, and answering some of my questions! Can you possibly eleborate more on an angle from or regarding the Extremely Large Telescope vs JWST, as to which one will be more advanced/helpful in answering the question of life on exoplanets. Basically should I be more excited about the ELT or the JWST to providing us with the answer? I've been more excited about the ELT, but as a layman I have no idea which one will be better with the analysis of the atmospheres of rocky exoplanets etc? Thank you in advance!

    • @martiancolonist
      @martiancolonist  3 роки тому +2

      The ELT can potentially search for molecular oxygen in the atmospheres of the nearest exoplanets. For example, Proxima Centauri b. But this falls off very rapidly with distance, so only a handful of rocky planets can be searched for life with the ELT. JWST isn't sensitive to oxygen, but is sensitive to methane (another potential biosignature) and can look out to many hundreds of light years. So neither is really 'better', both JWST and the ELT use different techniques and are quite complementary!

    • @ChristopherHitchens3.14
      @ChristopherHitchens3.14 3 роки тому +1

      @@martiancolonist Wow thank you for the quick response! Okay so both will be helpful in their own way. Are the any particular reason the JWST couldn't be designed with oxygen sensitivity in mind? And if I may add, which one is more important in finding life in your opinion, oxygen or methane? I would think that both are important, but which one in your opinion would be more decisive in our search?

    • @martiancolonist
      @martiancolonist  3 роки тому +2

      @@ChristopherHitchens3.14 the spectral signatures of oxygen are sharp lines, so you need a high wavelength-resolution to resolve them. Instruments capable of doing this are currently too heavy to be launched into space, so JWST's instruments only have limited sensitivity to molecules like oxygen. Most other molecules can be seen by JWST with no problem, oxygen is just a bit of a special case (the symmetry of the molecule causes it to have much fewer spectral signatures - that's quantum mechanics for you!).
      Oxygen would be more interesting on its own, as there are plenty of ways to make methane just via normal chemical reactions. But oxygen can also be made on its own without life (e.g. via an evaporating ocean). You'd need to see both molecules together just to start arguing a case for life.

    • @ChristopherHitchens3.14
      @ChristopherHitchens3.14 3 роки тому +2

      @@martiancolonist Thank you once again for an elaborate answer, much appreciated! This perfectly answers my question, I really hope that we will have success in future with these upcoming wonders of technology! Once again I really appreciate that you came back to me with elaborate answers which solved my questions!
      As a final thought, how large (diameter) would an earth based telescope need to be to directly view an exoplanet, if it's possible ofcourse?

    • @martiancolonist
      @martiancolonist  3 роки тому +2

      8m class telescopes have already directly imaged wide-orbit giant planets. You can find a collection of movies of directly imaged planets (real data!) here:
      jasonwang.space/orbits.html

  • @philmutonhodza7899
    @philmutonhodza7899 4 роки тому +1

    Are we not looking for earth like life? Is earth like life the only life? Is it possible that some life could be supported by nitrogen for example and methane without oxygen? Or the periodic table is not as cast in stone as we think? I have no idea what I'm talking about..pardon me

    • @martiancolonist
      @martiancolonist  4 роки тому +1

      The periodic table and the properties of chemical bonds capable of satisfying the requirements for life actually are rather restrictive. There are, however, some other potential biochemistries that have been considered by researchers. So there is a good theoretical basis for alien life to use a similar chemistry to life on Earth. It's more a problem of how we would recognise life producing biosignature gases which don't exist on Earth.

    • @philmutonhodza7899
      @philmutonhodza7899 4 роки тому +1

      @@martiancolonist agreed even if its beyond me
      Just happy you responded to my gibberish and you made sense out of it

  • @Tom-vy3cb
    @Tom-vy3cb 4 роки тому +4

    I don’t think we will be told about aliens at least not any time soon. Look at how crazy the world has reacted to Covid. I don’t think people could cope if they knew aliens existed 😂

    • @honeymilano5325
      @honeymilano5325 3 роки тому

      Lol .... considering the last two weeks it wasn’t that far ahead 😂

  • @FairyWeatherMan
    @FairyWeatherMan 4 роки тому +4

    Excellent video. You have a flair for explaining difficult to grasp subjects in a very clear way. Thanks for your efforts, channels like yours are the real treasure trove of UA-cam.

  • @macbainexplains5795
    @macbainexplains5795 3 роки тому

    When do we get a new Mars mission update video?

    • @martiancolonist
      @martiancolonist  3 роки тому

      I've been working on one for a while now. Got a little derailed when my house caught fire a month ago.

    • @macbainexplains5795
      @macbainexplains5795 3 роки тому

      @@martiancolonist oh no I’m sorry to hear that. My cabin burned down back in October so I know how you feel. Good luck with getting everything back on track!

  • @busch6538
    @busch6538 4 роки тому +3

    Can't wait for the James Webb telescope, can't imagine what we're going to discover.

    • @martiancolonist
      @martiancolonist  4 роки тому +3

      The most incredible discoveries will surely be those we can't yet imagine.

  • @JynxedKoma
    @JynxedKoma 3 роки тому

    0:24 *[Wheezing laughter]* "Look at the top of his heeeadd!!!"

  • @jeffreygrove8921
    @jeffreygrove8921 4 роки тому +1

    Great video! Unfortunately, I don't have access to the full astrophysical article - I am not a full time professor at an institution. Thanks for the presentation.

    • @martiancolonist
      @martiancolonist  4 роки тому

      Here is the open access link to our paper:
      arxiv.org/pdf/2009.07274

  • @johnnyabuto1502
    @johnnyabuto1502 3 роки тому +1

    Where are you ?
    No updates!
    Should we worry?

    • @martiancolonist
      @martiancolonist  3 роки тому +2

      I am indeed working on a new video.
      Suffered a little setback a few months ago when my house caught on fire.

    • @johnnyabuto1502
      @johnnyabuto1502 3 роки тому +1

      @@martiancolonist We're really sorry. My brother Vincent he is a great enthusiast of your work. He asked me to check up on your updates. Hoping the best for you Brother.

    • @martiancolonist
      @martiancolonist  3 роки тому +2

      @@johnnyabuto1502 I'm doing well now, hopefully should have something for you all soon!

  • @Jenab7
    @Jenab7 4 роки тому +1

    I found this paper that throws doubt upon the possibility of finding habitable planets orbiting white dwarfs.
    faculty.washington.edu/rkb9/publications/bh13.pdf
    Abstract
    White and brown dwarfs are astrophysical objects that are bright enough to support an insolation habitable zone (IHZ). Unlike hydrogen-burning stars, they cool and become less luminous with time; hence their IHZ moves in with time. The inner edge of the IHZ is defined as the orbital radius at which a planet may enter a moist or runaway greenhouse, phenomena that can remove a planet’s surface water forever. Thus, as the IHZ moves in, planets that enter it may no longer have any water and are still uninhabitable. Additionally, the close proximity of the IHZ to the primary leads to concern that tidal heating may also be strong enough to trigger a runaway greenhouse, even for orbital eccentricities as small as 0.000001. Water loss occurs due to photolyzation by UV photons in the planetary stratosphere, followed by hydrogen escape. Young white dwarfs emit a large amount of these photons, as their surface temperatures are over 10000 K. The situation is less clear for brown dwarfs, as observational data do not constrain their early activity and UV emission very well. Nonetheless, both types of planets are at risk of never achieving habitable conditions, but planets orbiting white dwarfs may be less likely to sustain life than those orbiting brown dwarfs. We consider the future habitability of the planet candidates KOI 55.01 and 55.02 in these terms and find they are unlikely to become habitable.
    Key Words: Extrasolar terrestrial planets-Habitability-Habitable zone-Tides-Exoplanets.
    _Astrobiology_ 13, 279-291.

    • @martiancolonist
      @martiancolonist  4 роки тому

      Similar theoretical arguments are often used to discount M-dwarf planet habitability (e.g. frequent flaring early in the star's life eroding the atmosphere). We won't ultimately know until we look.

    • @Prof.Megamind.thinks.about.it.
      @Prof.Megamind.thinks.about.it. 3 роки тому

      Mr. Sims ,
      Given the far more rapid rate of cooling that brown-dwarf stars experience , you may have that backwards .
      Habitable worlds take a significant amount of time to develop , by which time a brown-dwarf planet will have cooled off . Also , such a planet is likely to have an extremely deep layer of volatile compounds covering it's surface. If it starts out close to it's star , such a planet will likely become a Venus , and stay that way until severe cold finally engenders atmospheric collapse into an "ice-ball" state. "Catch-a-twenty-two !" 🤓
      White-dwarf planets however , can have a more stable developmental pathway . To examine this more closely , read my Quora Post#2 : "What is the habitable- zone of a neutron-star ?" , click the link at the bottom .

    • @Prof.Megamind.thinks.about.it.
      @Prof.Megamind.thinks.about.it. 3 роки тому

      ^ For additional analysis and reference , scroll down ten boxes to the Reply of Joao de Carvalho .
      Read my detailed Reply to him .

    • @Jenab7
      @Jenab7 3 роки тому

      @@Prof.Megamind.thinks.about.it. I'm not an author of the paper that I quoted from.

    • @Prof.Megamind.thinks.about.it.
      @Prof.Megamind.thinks.about.it. 3 роки тому

      @@Jenab7
      True , but...
      Your opinion is still of interest . 👌

  • @tanzanos
    @tanzanos 3 роки тому +1

    Excellent work. Thank you.

  • @Frank-Obeewonknobe
    @Frank-Obeewonknobe 3 роки тому +1

    Wow! You’re Amazing! Thank you for your clarity and wonderful information.

  • @joaodecarvalho7012
    @joaodecarvalho7012 4 роки тому +2

    6 months of setup for James Webb? Damn!

  • @davidarbuckle7236
    @davidarbuckle7236 3 роки тому +1

    James Webb is going to be awesome. Love your videos.

  • @deliriumcode
    @deliriumcode 3 роки тому

    Never understood stories about red dwarfs and habitable planets:
    1) how red dwarfs become red dwarfs?
    2) if that process was so violent (dying star), how that now potential habitable planet (which was so close) still have conditions to be habitable?
    Can anybody explain this and help me understand that phenomenon?

  • @crashbee8787
    @crashbee8787 3 роки тому

    why u stopped uploading ?

    • @martiancolonist
      @martiancolonist  3 роки тому

      I am working on a new video. My research at the day job has just been a little hectic these past months.

    • @prashpatel6436
      @prashpatel6436 3 роки тому

      @@martiancolonist okay we will wait

  • @hyperlinguist5687
    @hyperlinguist5687 3 роки тому +1

    Wow! I'm glad I've come across this video. Excellent.

  • @component29
    @component29 3 роки тому

    I have a theory, I saw a different documentary ages ago, it was very scientific and told me that the 2 most versatile molecules in the universe are carbon and silicon, because they can both form complicated structures. So in theory, if there was a planet somewhere that has lots of silicon, and other molecules, there maybe a combination of molecules for a silicon based life form, and if that was to happen, or if it has happened, that life form would most likely be the most successful type of space explorers possible. Our own technology has gone through the roof since the moon landings, and it’s all thanks to silicon chips, and right now we are on the cusp of creating a silicon based life form. What if it’s not a coincidence? What if our constant hunger for newer better technology blinded us to the fact we were given this tech in the first place, and we are being steered towards creating an artificially intelligent species that they could turn on us at anytime. Am I completely nuts?

  • @vincentvincent6019
    @vincentvincent6019 3 роки тому +1

    We miss Mission updates. Come back. Tell us about starship timeline.

    • @martiancolonist
      @martiancolonist  3 роки тому

      The next update is in the edit, should have it out soon! 🚀

  • @jadefinchscene5644
    @jadefinchscene5644 4 роки тому +2

    And done. I have now watched all of your videos. I made an effort to comment on any that gave me questions, or needed clarification. you have responded to nearly all of them, and probably just haven't had time too see some of the more recent comments. I for one love the accessibility of video information. one thing i must have missed along the way, but you hinted at after the fact is the current status of Mars One? I love how well you stay neutral about many of the things your videos discuss. I love other channels for exactly the opposite reasons. Both are critical to my way of forming my own opinions, and developing my learning process. I look forward to further content from you.
    I would love to get involved in your discord.
    Happy new 2021!

    • @martiancolonist
      @martiancolonist  4 роки тому +1

      Thank you for your words of support, glad you've enjoyed the video marathon!
      Mars One still exists (in the form of a non-profit foundation), but they haven't really done much these past few years. I get emails from them occasionally, but it's all pretty quiet.
      I'm currently doing research for a new video, which should hopefully release by the end of January.
      You would be more than welcome to join the Discord channel. Do you have a preferred email address for me to send an invite to?

    • @jadefinchscene5644
      @jadefinchscene5644 4 роки тому

      @@martiancolonist Jadefinchscene@gmail.com
      I know how much it takes to research videos. currently i am averaging about a month to put together a video. I find i am happier with the content, even if the algorithm is not...

  • @SmurfMasher
    @SmurfMasher 4 роки тому +1

    Hang on, White dwarfs surely can't be a vible candidate for habitable worlds.
    -The high density and close promixity would create insane tidal forces on the nearby world if in the habitable zone.
    -The orbiting planets would be tidally locked.
    -The orbiting planets would have their atmosphere stripped
    -They are very new comparative to the universe average for stars, giving less time for life to rise. It would also require a normal star to convert before it can be setup as a habitable world. The existing planets that orbited the old larger star would likely be further out than the habitable zone, and are not likely to have been drawn in closer after the sun lost most of it's mass.
    -Any planet was was close enough would have been burned to a crisp in the red dwarf phase expansion, and had their atmospheres wiped.
    Yes it may be very exciting to be able to skip 6 years of waiting, and you will be able to id the atmospheres on many many more planets, but the chances of life are very small. I'd rather you spent 6 years looking at the trappist system.

    • @johnfoerster7533
      @johnfoerster7533 3 роки тому +1

      may be worth putting your comments in an email to the author asking them to put his replies up here-- interesting discussion. In the end (what the guy doesn't say) it's really all about competing for highly scarce JWST observation time...

    • @SmurfMasher
      @SmurfMasher 3 роки тому

      @@johnfoerster7533 I think that quite often reports base the canidates for habitable planets based upon what we can see now which is very limited. It really annoys me when "proper media" reports that most planets are around red dwarf stars, when it is just that due to the dimmer light and tighter habitable zone it is easier for us to detect planets crossing the orbit of red dwarfs. There is zero data to suggest that suns like ours are less likely to have planetary systems, only that the data set we currently have massively favours detection around dwarf stars.

  • @bjarnes.4423
    @bjarnes.4423 4 роки тому +2

    JWST is launching in 2021?
    I hope so, but I doubt it...

    • @martiancolonist
      @martiancolonist  4 роки тому +4

      The current launch date is October 31st 2021, and all of us astronomers *really* don't want to see another delay. We're writing observing proposals for JWST right now (deadline in November), so fingers crossed it finally goes up!

    • @ronschlorff7089
      @ronschlorff7089 4 роки тому

      @@martiancolonist Vote for Biden, and you will see a further delay or worse, a cancellation. Remember the "moribund" NASA years under O'Biden, hmmmmmm!! ;D

    • @alexandresen247
      @alexandresen247 4 роки тому +1

      @@martiancolonist proposers may request an extension of the proposal deadline to 8pm eastern on december 3 if they are are faced with unexpected events that occur shortly before the primary deadline.

  • @iscreamfitness
    @iscreamfitness 3 роки тому

    You are really good at teaching

  • @rodfaragini7110
    @rodfaragini7110 4 роки тому +1

    So very interesting. Can not wait for a big discovery.

    • @Prof.Megamind.thinks.about.it.
      @Prof.Megamind.thinks.about.it. 3 роки тому

      Mr. R.F. ,
      There's a new paradigm presented below (12/20) , to Joao deCarvalho .
      It addresses the mysterious overabundance of metals in the photosphere of younger white-dwarf stars . .😎

  • @spaceintel101
    @spaceintel101 4 роки тому +7

    Incredible video mate, thank you for your dedication towards exploration and astronomy of our star and beyond!

    • @martiancolonist
      @martiancolonist  4 роки тому +2

      Thanks for your kind words!
      Looking forward to sharing future discoveries with you all 🙂🚀

    • @spaceintel101
      @spaceintel101 4 роки тому +2

      @@martiancolonist That's awesome, I've been watching your videos for a while now and I love them! My company Space Intelligence is an aerospace media outlet made up of its own dedicated photographers, launch infographics, render specialists, and even articles. Where new to YT but is a leading reporting company on FB, Twitter, Instagram, and Patreon. :)

    • @spaceintel101
      @spaceintel101 4 роки тому +2

      @@martiancolonist So keep up the incredible work by sharing what you know to the world. Cheers

    • @martiancolonist
      @martiancolonist  4 роки тому +3

      @@spaceintel101 will do!

  • @unclesmugs4552
    @unclesmugs4552 3 роки тому +1

    I subbed by the way your content is lit

  • @karlthemel2678
    @karlthemel2678 4 роки тому

    Is not AM progressively phased out? K-dwarfs are fairly common, too. The white dwarfs must flood a planet with UV radiation. Would planets migrate in after the planetary nebula formed or would they form new from dust within the planetary nebula? Thank you for the video.

  • @vishnuisgreat471
    @vishnuisgreat471 3 роки тому +1

    Excellent video, but what about moons orbiting gas giants?

    • @martiancolonist
      @martiancolonist  3 роки тому

      We haven't conclusively detected any exomoons yet.

    • @vishnuisgreat471
      @vishnuisgreat471 3 роки тому

      @@martiancolonist ok. Got the point. Can you please make a video on it later when you get sufficient information. It would definitely be interesting.

  • @joaodecarvalho7012
    @joaodecarvalho7012 4 роки тому +3

    I wonder what happens to the planet when the star dies and ejects its mass.
    Congratulations for your paper.

    • @Prof.Megamind.thinks.about.it.
      @Prof.Megamind.thinks.about.it. 3 роки тому

      Mr. J.C. ,
      That would depend on where the planet is during that event . If the planet's orbit was within the red-giant's outer layers , it would have been vaporizing and spiraling inwards for some time . In this case it likely was already absorbed by it's parent star . If however , it's orbit was outside of the surface of the red-giant , then the shedding of the star's exterior should push the planet's orbit outward , while removing some/most of it's atmosphere .
      Any planet that accretes or remains in close enough to be warmed by the star , will be subject to a magnetic-field up to a million times as intense as Earth's . Even a thousand-fold engenders some risk of fatality , not to mention the incredibly high-speed vortex of particle-radiation generated by the rapidly spinning stellar remnant . All magnetic/paramagnetic materials in the star's proximity would likely be drawn inwards, and eventually vaporized in the white- dwarf's photosphere .
      This is further complicated by the powerful flood of ionizing-radiation emanating from the dangerously close , 10-to-100°k.Kelvin star .
      A close-in rocky-planet here would almost certainly be stripped of any protective atmosphere , making underground habitation the only sensible alternative .
      *.To examine this subject in greater detail , read my post at :
      quora.com/If-possible-to-shield-against-the-radiation-could-mankind-move-to-a-planet-orbiting-a-magnetar-and-use-the-strong-natural-magnetic-fields-to-create-unlimited-electricity-sources-much-like-we-currently-do-with/

    • @joaodecarvalho7012
      @joaodecarvalho7012 3 роки тому +1

      @@Prof.Megamind.thinks.about.it. Thank you for the explanation. White dwarfs are curious objects.

    • @Prof.Megamind.thinks.about.it.
      @Prof.Megamind.thinks.about.it. 3 роки тому +1

      @@joaodecarvalho7012
      Yas ,
      Keep in mind that the progressively magnetizing metals will inexorably be drawn in , because they will become more magnetized as they get closer to the white-dwarf . This parallels the formation paradigm of Jovian proto-planetary disks , and explains their dearth of metals .
      *Coulomb's Law is definitely not followed , in either natural system !.🤓

    • @Prof.Megamind.thinks.about.it.
      @Prof.Megamind.thinks.about.it. 3 роки тому

      @@joaodecarvalho7012
      Mr. Joa`o ,
      You might also want to read my Reply to savant David Sims , up above . 🤓

  • @JM-qd2ky
    @JM-qd2ky 3 роки тому +1

    Greetings from planet Xylopia

  • @mdramirez0001
    @mdramirez0001 4 роки тому +4

    Does this affect the Drake equation in anyway ?

    • @martiancolonist
      @martiancolonist  4 роки тому +6

      Absolutely. When the Drake equation was written, we only knew the first term (star formation rate). Exoplanet discoveries have measured the 2nd and 3rd terms (fraction of stars with planets & fraction of planets in the habitable zone). The next step is to measure the 4th term: the fraction of habitable planets with life. Detecting alien biosignatures is precisely how we plan to do this.

    • @ronschlorff7089
      @ronschlorff7089 4 роки тому

      @@martiancolonist Right, like all hypotheses, the Drake equation is just a starting point to be confirmed or refined, or even rejected, as more empirical data are gathered. It's called the scientific method kiddies!! :D

  • @Alexandre-ki1xo
    @Alexandre-ki1xo 2 роки тому +1

    A close-in habitable planet will be tidally locked, showing the same face to the white dwarf , so... life would only be possible on a small portion of the planet... and a planet like this with atmosphere, because of the extreme differences in temperatures, wouldn't it probably have extremely violent winds all the time... ? So maybe not the ideal conditions for life ?

    • @martiancolonist
      @martiancolonist  2 роки тому +1

      It turns out that ocean circulation actually dramatically expands the habitable region of a tidally locked planet. This, in turn, also modulates the wind strength. So tidally locked planets aren't as hostile as you might think to life.

    • @Alexandre-ki1xo
      @Alexandre-ki1xo 2 роки тому

      ​@@martiancolonist Very good point, thank you for the answer. Somehow my feeling is still that it would be far less welcoming to life than fastly rotating planets like earth.... seeing all the arguments in thoses 2 wiki articles:
      en.wikipedia.org/wiki/White_dwarf#Habitability
      en.wikipedia.org/wiki/Habitability_of_red_dwarf_systems
      ( white dwarfs having similar problems like red dwarfs )
      Personally, the idea that life might be very rare, as a solution to the fermi paradox, gives the concern that consciousness is probably extremely rare and that's the main reason I agree with you that we should populate Mars ASAP ;-)

  • @fichinesonline
    @fichinesonline 4 роки тому +1

    can you go to the point please?

  • @floralemmens
    @floralemmens 4 роки тому +2

    You're my man🥳🤟🏻 awesome video

  • @Crippleddog
    @Crippleddog 3 роки тому +1

    how did i watch all of this?

  • @LuigiRBedin
    @LuigiRBedin 4 роки тому +1

    Cool Video.

  • @londonspade5896
    @londonspade5896 3 роки тому

    Thoughts on life in the upper atmosphere of Venus?

  • @anotheperspective
    @anotheperspective 3 роки тому +1

    Why do we expect aliens to must breathe oxygen.?

    • @martiancolonist
      @martiancolonist  3 роки тому

      We know oxygen isn't the only option, but it's a good place to start because it allows highly efficient respiration. The early Earth actually had organisms called methanogens that did not need to breathe oxygen, but the vast majority of life on Earth switched to breathing oxygen billions of years ago. This is simply because it's a better option to sustain the demands of more complex organisms.

  • @GreenPartyHat
    @GreenPartyHat 4 роки тому +4

    Mars update soon ? I’m guessing you’re waiting until after the SpaceX presentation in October.

    • @martiancolonist
      @martiancolonist  4 роки тому +4

      Yeah, I've been waiting for the SpaceX presentation to go into full production. So probably October / November for the next Mars Update. They'll be *a lot* to cover in that video!

    • @GreenPartyHat
      @GreenPartyHat 4 роки тому +1

      Martian Colonist awesome!

  • @Rsiatat
    @Rsiatat 4 роки тому +1

    This man deserve over 1 million subscribers for such amazing content! Give a share! Help a brother out

  • @prashpatel6436
    @prashpatel6436 3 роки тому +1

    This man is intelligent thank u 🙏

  • @Gnekdjidkdbbdd
    @Gnekdjidkdbbdd 3 роки тому +1

    This guys suits this episode as he looks like he is from future either from Jupiter or Mars even before we landed on moon 🌙😆

  • @kiltedjohn1000
    @kiltedjohn1000 4 роки тому

    is the james webb really really really times 25 years be blasting off to space this year?

  • @halloheyman
    @halloheyman 4 роки тому

    Very cool concept. Just wondering if it’s possible for life to exist in such a planet tho considering all it’s been through wouldn’t the atmosphere be completely torn off and the magnetic field all disrupted and tidally locked for sure? Anyways cool concept tho and cool video thanks!

    • @martiancolonist
      @martiancolonist  4 роки тому +1

      A new atmosphere can be outgassed from the interior over geological time, so not an issue if an atmosphere is lost during the Red giant phase. Atmospheres can be perfectly stable for tidally locked planets (most of the exoplanet atmospheres we have detected are around close-in, tidally locked planets).

  • @Cscuile
    @Cscuile 4 роки тому +3

    I truly do believe that life, even intelligent life, exists in abundance in this universe.

    • @mikedrop4421
      @mikedrop4421 4 роки тому +1

      Well if the universe is actually infinite then there is intelligence out there. In fact there is a copy of you somewhere to because an infinite universe contains everything possible within the laws of physics.

    • @martiancolonist
      @martiancolonist  4 роки тому +2

      As do I. The question though, is how far away is the nearest example of other life? If it's within a few hundred light years, we have a decent chance at finding it in the near future.

    • @Cscuile
      @Cscuile 4 роки тому +1

      @@martiancolonist Do you know what the chances are of finding a white dwarf within an orbiting rocky planet within a few hundred light years? Is it astronomically unlikely? Or is it possible to find if we place a bigger emphasis on searching for them?

    • @martiancolonist
      @martiancolonist  4 роки тому +1

      @@Cscuile we actually don't know, since we only just started looking! But statistically speaking, we should see about 1 in every 100 of them (they need to be aligned edge for us to see a transit).

    • @Cscuile
      @Cscuile 4 роки тому +3

      @@martiancolonist Wow, not bad chances at all! You guys are making history with that paper. It's just a matter of time now before life is found.

  • @God_of_Calamity
    @God_of_Calamity 3 роки тому

    I don't think we have to worry about finding alien life when in all likelihood it's already found us.

  • @damn671
    @damn671 4 роки тому +1

    2:58 - Alien spotted

  • @iscreamfitness
    @iscreamfitness 3 роки тому

    Why do we expect all life to be carbon based. What If life is more open source and combine with What is. Like a sulfer a based life or other

  • @keemstubbs4638
    @keemstubbs4638 4 роки тому

    What if we get to a exoplanet and there’s already beings there ??? Would they declare war on us ???

  • @adddude7524
    @adddude7524 4 роки тому +1

    I just put all of my hats on - just so I could take them off! Incredible video! Thanks for sharing your research in such an understandable and captivating way. You really have a talent for this!

  • @hammermolder4366
    @hammermolder4366 3 роки тому

    When i walk around LA Dr Ryan, im sure the Aliens have already arrived

  • @DeBanked
    @DeBanked 3 роки тому +1

    It will be found on a Thursday, its always on a Thursday

  • @daytonagreg8765
    @daytonagreg8765 4 роки тому +5

    Absolutely fascinating by the way. Sending the link to my boys in their late 20’s. They’re as interested as I am about this. Incredibly well presented. 🙏

  • @sleepyboi8060
    @sleepyboi8060 4 роки тому +4

    Woah you're a like a dude who studies this stuff, for real?! Dang, this is a gold nugget in the sea of coal that is the youtube algorithm.

  • @carsten6954
    @carsten6954 4 роки тому +1

    Great Video! It's always fascinating to listen to passionate researchers describing their findings. However, this is particulary true for the ones who research the biggest questions of our time.

  • @VexMage
    @VexMage 3 роки тому

    Did anyone else mentally finish one of the first sentences in this video with, "where did we come from, cotton eye joe?"

  • @Cscuile
    @Cscuile 4 роки тому +1

    Wow an incredible opportunity for a search for life! Thank you for sharing this!

  • @dhominicespiloy2805
    @dhominicespiloy2805 3 роки тому

    Why there's exoplanet we see at night it's very far need the most fastest warship travel light speed

  • @TheJoshAllisonTeam
    @TheJoshAllisonTeam 4 роки тому

    Why is your last video before this one set to “Private” ??? 🤔

    • @martiancolonist
      @martiancolonist  4 роки тому +1

      I had to fix some audio issues with the original version of this video.

  • @DwayneJr1
    @DwayneJr1 4 роки тому +1

    That phosphine tho. #VenusDreams

  • @travelinjack830
    @travelinjack830 3 роки тому +2

    Freaking BRILLIANT! Thank you for this. I agree with the other comments you have a talent for doing this. Want to say more but, lol, I'd sound like a moron if I don't now.

  • @rlsingle00
    @rlsingle00 4 роки тому +1

    This is very interesting. I don’t think we are alone in this huge universe we live in. It would be nice to know, but like Dr Hawking’s fear of super advanced aliens that would look upon us as we look upon insects, I totally respect.

  • @brads2041
    @brads2041 4 роки тому +3

    Very cool presentation. Wish you didn't have to wait for JW but very excited for how it will help

    • @martiancolonist
      @martiancolonist  4 роки тому +1

      I actually have some ideas for how we could do this with existing telescopes, in case we find a planet before JWST launches 😉

  • @daytonagreg8765
    @daytonagreg8765 4 роки тому +3

    Dude, I was just looking at YOU again with a more critical eye [squinting just a bit], and if YOU are actually an Alien and have been trolling us this whole time, I say:
    “Well played sir”

  • @garrycurter5671
    @garrycurter5671 4 роки тому

    Good

  • @alltimemusic-tamil9981
    @alltimemusic-tamil9981 4 роки тому +1

    Brief explanation on finding exoplanets.. great job... waiting for James Web launch mission for long time..

    • @martiancolonist
      @martiancolonist  4 роки тому +1

      There are of course other ways to find exoplanets, but there are many fantastic videos covering exoplanet detection methods. I thought it would be a nice addition to cover exactly how we are going to search for life with James Webb.

  • @mike74h
    @mike74h 4 роки тому +1

    I've always been much more excited for telescopes that will detect Earth-size planets but this certainly ups my interest in JWST. Very neat!

  • @mikoske
    @mikoske 4 роки тому +2

    Thanks for the quality content and also for the great live stream about The White Dwarf Opportunity (Carl Sagan Institute channel)!

  • @dhominicespiloy2805
    @dhominicespiloy2805 3 роки тому

    It's was so challenging to reach those exoplanets it's a suicide mission

  • @purplescorpion4516
    @purplescorpion4516 3 роки тому

    Humans: aliens!
    Aliens: humans!

  • @charlesblack7560
    @charlesblack7560 4 роки тому +3

    I always thought the Stars was like the ones on the USA flag lol

    • @richstarx
      @richstarx 4 роки тому

      They do look 5 pointed when u look at them at night ...with ur eyes like ..in ur back garden or something

  • @bjarnes.4423
    @bjarnes.4423 4 роки тому +3

    Probably around a red dwarf

    • @martiancolonist
      @martiancolonist  4 роки тому +2

      The red dwarf TRAPPIST-1 is a great system to study. I'll be working on analysing the first transits of TRAPPIST-1e when JWST observes the system - can't wait to see what these planets are like!

    • @0Synergy
      @0Synergy 3 роки тому

      @@martiancolonist Yeah red dwarfs are absolutely the most interesting, calm long lasting stars are probably the best place to look, its kind of amazing life has sprung up here considering how violent our star is plus how crazy harsh the Earth is in its temperature ranges.

  • @orangefield100
    @orangefield100 3 роки тому

    Alien life found us in 1947 at Roswell.

  • @dhominicespiloy2805
    @dhominicespiloy2805 3 роки тому

    first exoplanet jupiter cousin

  • @stefanieschlang8975
    @stefanieschlang8975 4 роки тому +1

    So much information and I love how you are delivering it! Thank you so much!

  • @danchitwood6783
    @danchitwood6783 3 роки тому

    Saturday.

  • @arcadia3791
    @arcadia3791 4 роки тому +1

    This is a bit of a breakthrough. The rate of learning about exoplanets should rapidly speed up thanks to this.

  • @cocojoy9779
    @cocojoy9779 3 роки тому

    When aliens become human food

  • @simateix6262
    @simateix6262 4 роки тому +1

    I find exoplanets very interesting. Thank you for another great video. Keep looking up !

  • @gregcaygill226
    @gregcaygill226 4 роки тому +2

    Brilliant video, again!, after you moved to your new position i feared the end of them, die to your time restraints. Your allways thoughtful interesting and bang on with your theories and ideas.. This looks so interesting,, completely fascinating so amazing to think we might finally gets some clear information about life on other planets, it is a shame we can’t so easily study the planets before the dwarf era as me being a layman, would possibly think there is more chance before, but it’s an amazing start! I wish you good luck in your supernova bright future with this and your two colleagues at the CSI

  • @TrueMathSquare
    @TrueMathSquare 4 роки тому

    I can't believe I saw your channel went form 3 subs to 54k. Great job on that!
    Now what do you think of the one way speed of light problems. This guy thinks he has a way to tell. ua-cam.com/video/BzG8FrIgzhE/v-deo.html
    If it's differs than I feel it must be due to a field of some kind.

  • @markmitchell450
    @markmitchell450 3 роки тому

    Sure others sun's have their own planets
    Sure gravitational wobble and transiting light drop off indicates an object is passing a sun on its orbit
    So what about those planets passing a sun but one orbit of that sun takes hundreds of years surely this method won't be accurate said planet could take many many years just to pass the side of the source of light we can observe

    • @martiancolonist
      @martiancolonist  3 роки тому

      Most transiting planets are on orbits of a few days to several weeks. A few have been found on multi-year orbits. The problem with long period planets is that the probability of a transit being visible from our vantage point falls off inversely with the planet-star distance. Hence most of the planets we find by this method orbit close to their star.

  • @vasudevmenon9568
    @vasudevmenon9568 4 роки тому

    I wish humans don't reach other planets and turn them into like earth

  • @badbadfull
    @badbadfull 4 роки тому +1

    I am so late, I didn't know mars one was a scam, I really hope you still get to go to Mars.