Could life exist around red dwarf stars?

Ғылым және технология

Could life exist around red dwarf stars? That's one of the most important questions in our search for life in the universe. Red dwarf stars are the most common type of star and they live for up to several trillion years. So if life can exist around red dwarf stars, then life might be very common in the universe. In fact, the two closest planets to the Sun, Proxima Centauri and Barnard's star, each host potentially habitable planets (Proxima b and Barnard b).
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🧭 References:
Adams et al 2005 onlinelibrary.wiley.com/doi/a...
Ehrenreich et al 2006 arxiv.org/abs/astro-ph/0607219
Anglada-Escudé et al 2016 arxiv.org/abs/1609.03449
Dong et al 2017 arxiv.org/abs/1702.04089
Boutle et al 2017 arxiv.org/abs/1702.08463
DelGino et al 2017 arxiv.org/abs/1709.02051
Wandel 2017 arxiv.org/abs/1802.00141
Howard et al 2018 arxiv.org/abs/1804.02001
MacGregor et al 2018 arxiv.org/abs/1802.08257
Mullan & Bias 2018 arxiv.org/abs/1807.05267
Ribas et al 2018 arxiv.org/abs/1811.05955
Lingam & Loeb 2019 arxiv.org/abs/1901.01270
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Пікірлер: 427

  • @LaunchPadAstronomy
    @LaunchPadAstronomy5 жыл бұрын

    🔴 Check out more exoplanet videos: kzread.info/dash/bejne/m51ry5l6c6mZZMo.html

  • @nickynsu4209

    @nickynsu4209

    2 жыл бұрын

    Well there is one red dwarf that doesn't burn powerful radiation it's call teegraden star and it have planets 2 but both of them are in the Goldilocks zone

  • @elementus2857
    @elementus28574 жыл бұрын

    One of the few times that KZread's recommendation algorithm give me a true gem

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    4 жыл бұрын

    Thank you so much Elementus, I'm glad to have you along for the ride!

  • @PersonyPerson
    @PersonyPerson5 жыл бұрын

    By far hands down the best video I have seen to date that discusses life around Red Dwarfs. Covers most of the important controllers and factors for habitability around these stars and comes to a realistic conclusion based on them. Thanks a lot!

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thank you so much, can't tell you how much I appreciate the kind words!

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    4 жыл бұрын

    Thank you for those kind words, I really do appreciate them!

  • @patrickfitzgerald2861

    @patrickfitzgerald2861

    4 жыл бұрын

    Agree.

  • @wheelerdealer7098
    @wheelerdealer70985 жыл бұрын

    Another great presentation. Very informative. Keep up the great work 👍

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thank you very much!

  • @Swampzoid
    @Swampzoid5 жыл бұрын

    I try to imagine what an alien civilizatons would be like. Their history, culture, architecture and art and music and of course what their lifeforms would look like. But I will never know in this life.

  • @jennibaxter9588

    @jennibaxter9588

    5 жыл бұрын

    I think they'd look pretty much like us but have different abilities. Maybe they can breath under water or change the color of their skin like a chameleon.

  • @airicarus

    @airicarus

    5 жыл бұрын

    Maybe the tidally locked side of the planet is covered with water, ruled by the water precies, and the opposite side is cold, dark dirt, ruled by a nocturnal subsurface species. The planet does not have a perfect elliptical orbit, causing the tide to surge yearly. And that is when the nocturnal subsurface species briefly interact with the diurnal water species.

  • @Turrican60

    @Turrican60

    5 жыл бұрын

    For a civilisation to have music presupposes that alien lifeforms have 'hearing' in similar fashion to ourselves. They may or may not have that facility...we really have no idea what's out there.

  • @harryshepherd4232

    @harryshepherd4232

    5 жыл бұрын

    Actually, you do know. Think about how absolutely unbelievably large the Universe is. Think about what would make sense for any form of life (e.g. IF they are large and have eyes then the eyes are at the top of the body), do that a couple more times and then add a little bit of fantasy to it, and somewhere in this practically infinite Universe there will almost undoubtedly be a life-form resembling what you're thinking about. However many times you think about one, you'll be right. Almost certainly in the present but absolutely, undeniably in the future. It's a lovely thought tbh.

  • @briandiehl9257

    @briandiehl9257

    5 жыл бұрын

    @@harryshepherd4232 It depends on how rare life is. Life could be so rare we are the only (intelligent) life in the universe

  • @Scupps1
    @Scupps15 жыл бұрын

    This channel must be one of the best kept secrets of KZread's Astronomy world so far! I am really glad I stumbled upon your channel this early and wish you nothing but success in the near future. I am very sure it will grow massively soon, because the content is just absolutely magnificent! Very well researched and presented. All the best and greetings from Germany. Keep up the great work!

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Wow, I can't tell you how grateful I am for your comment and kind words. Thank you so much!

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    4 жыл бұрын

    Thanks, I really appreciate it. I'm glad you stumbled onto it as well!

  • @Rafaga777
    @Rafaga7775 жыл бұрын

    Great presentation. I like the clear and concise explanation without an excess of special effects and annoying background music which makes your presentations relaxing yet very interesting.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thank you so much alborada777, I appreciate it! I'm still trying to figure out the best balance of production value and actually being able to get the video made :)

  • @jezzabr
    @jezzabr5 жыл бұрын

    Bro your thumbnails are some of the best I have seen on KZread

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thanks so much! I try to be a little different.

  • @vikranttyagiRN
    @vikranttyagiRN5 жыл бұрын

    Your videos always have a great representation of facts. You are one of my favorite channels on astronomy

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Wow, thank you so much. I'm very flattered!

  • @phoule76
    @phoule765 жыл бұрын

    I would love to believe that life forms easily, everywhere it can and as soon as possible. However, lately I've warmed up to the concept of panspermia, as life only appears to have arisen (sparked, genesis'ed, Peter Gabriel'ed, whatever) once on our cozy planet. I can't wait to be proven wrong when we find novel life under Mars, Europa, etc.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Yeah, that would be very cool if we find evidence not just of life, but of a second genesis.

  • @xserenityx7565
    @xserenityx75655 жыл бұрын

    So far, the most informative video I've seen regarding about life around red dwarf stars. You should definitely look forward to doing other stars as well, perhaps F-type stars. Definitely subscribing and liking the video. Excellent work!

  • @vf7vico
    @vf7vico5 жыл бұрын

    excellent and very helpful followup to your earlier video, Christian -- the questions it provoked are well clarified here. nice work!

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thanks Victor!

  • @AlexJones-ue1ll
    @AlexJones-ue1ll4 жыл бұрын

    Awesome video about Red Dwarfs and especially for including the point about the 3:2 spin resonanze. I have always wondered about that, and how likely it was so be a loophole for making planets around Red Dwarfs more viable for life.

  • @doodelay
    @doodelay4 жыл бұрын

    Your videos are clean, informative, and some of the best astronomy videos on KZread. Very happy to have found this channel today and now must go explore your playlist :)

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    4 жыл бұрын

    Thank you so much, and I'm very happy to have you along for the ride!

  • @mariejambawai7398
    @mariejambawai73982 жыл бұрын

    Very educational and interesting, thank you for taking the time to create it.

  • @carlahead5072
    @carlahead50725 жыл бұрын

    I’m so happy that I stumbled upon your channel as I’m a big astronomy fan and I’m so fascinated about space ,planets,different stars within our known universe and perhaps another earthlike planet to live on when our sun happens to go supernova. You’re very knowledgeable about red dwarf planets . There’s a video called Evacuate Earth-death by a Neutron Star and in this video it discusses Barnards Star and earth 2 ,a planet where we could possibly migrate to should the earth be threatened by a Neutron Star. The ark that would take humans to earth 2 would take about 100 years because the ship would be powered by antimatter,otherwise it would take much longer and certainly not within our lifetime. We wouldn’t survive that journey. I highly recommend everyone to watch this video called Evacuate Earth: Death by a Neutron Star I highly recommend your videos to everyone!!

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thank you Carla, I so appreciate your kind words!

  • @betapictoris1379
    @betapictoris13795 жыл бұрын

    Best video I have ever seen about the possibility of life around red dwarfs. Awesome work and presentation!

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Wow, thank you! I like your screen name :)

  • @maxkho00
    @maxkho005 жыл бұрын

    I have no idea why you have so few subscribers, you deserve way, way more. I didn't expect to get ALL the information I wanted to get about life on (nearby) red dwarfs, but, to my surprise, I did. Also, everything you have said in this video seems to match up with reliable sources (i.e. is correct), which, again, is a rarity for a KZread video. Hats off to you, sir!

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thank you so much Max Khovansky, I appreciate it!

  • @RobSojourn
    @RobSojourn4 жыл бұрын

    Based on this analysis, could you do a segment on if and how planets might re-acquire an atmosphere?

  • @thomasgreenall9173
    @thomasgreenall9173 Жыл бұрын

    I love these videos, but only because they condense alot of information into a short space of times I have to watch them a few times and then think about them for a few hours to get to the stage where I think I have generally got the jist of some of it.

  • @ChristopherDwane
    @ChristopherDwane5 жыл бұрын

    Wow! Excellent video! I'm an astronomy enthusiast with no formal science background whatsoever but I feel like I understood everything you presented, without it having to be dumbed down to an elementary level! I look forward to your future videos!

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thank you I really appreciate your feedback! I think with a little curiosity and imagination we can all learn. After all, if I can do it...

  • @msmyrk
    @msmyrk5 жыл бұрын

    Another really awesome video. You obviously put a lot of work into these. I'm surprised you've not got a bigger following!

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thanks! Yes it took a lot of time to make. Appreciate the feedback!

  • @sundayaito4366

    @sundayaito4366

    5 жыл бұрын

    Martin Smyrk , trust me, if he keeps uploading awesome videos as he is doing, his following is going to be huge. His videos have all the right elements that makes them high quality. They 're well put together and informative. And most importantly, he speaks very clearly with an impeccably soothing diction. He is on the right track to blowing up on KZread. I have since subscribed to his channel and have told my friends about him.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thank you so much for the kind words, Sunday. I'm very appreciative of them.

  • @anjkovo2138
    @anjkovo21385 жыл бұрын

    You answered my question very well. Thanks (SUBSCRIBED)

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Glad to have you along for the ride!

  • @ethanstrzempek3122
    @ethanstrzempek31225 жыл бұрын

    Great video. Very informative!

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thanks!

  • @cointreasurehunt1319
    @cointreasurehunt13195 жыл бұрын

    A good balanced video, well presented too. I'm looking forward to watching the one about red dwarf stars. Cheers : )

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thank you, I’m glad you enjoyed it!

  • @shuginubi
    @shuginubi2 жыл бұрын

    this topic bothered me for some time. thanks for content

  • @rauminen4167
    @rauminen41675 жыл бұрын

    This was brilliant, thank you!

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    My pleasure and thanks!

  • @sun71717
    @sun717174 жыл бұрын

    Great information..

  • @LordViktorHun88
    @LordViktorHun882 жыл бұрын

    Great video, although I think the TRAPPIST-1 system would have deserved a mention here. Not just because of the seven detected Earth-like planets, but also because if I'm correct, it does not flare up that often, as it is also older than Proxima.

  • @darkcontrast8470
    @darkcontrast84705 жыл бұрын

    Should do a video on brown dwarf systems. Would most likely lead to better results.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Yeah, talk about the strangest of strange ducks!

  • @OhioDan
    @OhioDan5 жыл бұрын

    Excellent summary on this topic.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thank you so much Ohio Dan, I appreciate it!

  • @balzac308
    @balzac3084 жыл бұрын

    It's cold outside, there's no kind of atmosphere.

  • @hopsta5628

    @hopsta5628

    4 жыл бұрын

    I'm all alone, more or less.

  • @davidcrutcher4208
    @davidcrutcher42085 жыл бұрын

    I really enjoy your content and presentation. I have a question regarding a statement you made that the planet orbiting Proxima Centauri could not be observed with the Extremely Large Telescopes which should see first light 2020s. I recall reading that a 30 meter telescope would be required to resolve the planet. The E-ELT is 39 meters and will have a coronagraph to block the M-Dwarfs light and will be in the Southern Hemisphere. 😀 What factor do you think will not allow imaging the planet? Thanks!

  • @jamesw5713
    @jamesw57133 ай бұрын

    Superb! I hope we find some habitable planets around red dwarfs!

  • @user-cm1fn2ss1i
    @user-cm1fn2ss1i5 жыл бұрын

    the least annoying astronomy channel, precise and straight to the point. thank you. oh, and lets not forget that it's consistent with the information that people need or want to hear.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thanks, I'm glad I'm not that annoying :)

  • @paularijit123
    @paularijit1235 жыл бұрын

    Nicely explained

  • @AlaskanBallistics
    @AlaskanBallistics5 жыл бұрын

    Great video

  • @kmckinlay8070
    @kmckinlay80705 жыл бұрын

    I just found your channel. I am not really an astronomy person but your presentation makes me want to be one, thanks.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    That's the best thing I've ever heard. Thank you!

  • @MaxTooney
    @MaxTooney13 күн бұрын

    Enjoyed the video. Along with the cold temps and occasional flares, shouldn't gravity on 'Barnard b' (mass of at least three times that of the Earth) also be an issue for Earthlings? I'm already heavy enough here, lol.

  • @alorikkoln
    @alorikkoln4 жыл бұрын

    Nice background. Where are you located? I would guess the south east, maybe Virginia?

  • @PizzaChess69
    @PizzaChess697 ай бұрын

    11:57 Red Dwarfs truly do age like fine wine, unlike the Sun...

  • @ConstructionKronies
    @ConstructionKronies5 жыл бұрын

    👽Very well done Christian! Lots to think about👨‍🚀

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thank you my friend!

  • @curlywolfone
    @curlywolfone5 жыл бұрын

    As an Astronomy novice I really loved your dissertation.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thank you so much curlywolfone, I appreciate it!

  • @hamlett22me
    @hamlett22me11 күн бұрын

    do you have a video (or considered making one) about 'nearby' Sun-like stars that are perhaps being studied for exo-planets and potential life?

  • @JimboJones99
    @JimboJones994 жыл бұрын

    Why does everyone think life on the SURFACE on a planet is the only possibility? ... Most life would be found BENEATH the surface.

  • @RayramAureanBlue

    @RayramAureanBlue

    4 жыл бұрын

    This is somewhat addressed at 9:09. An iron core could provide enough geothermal energy to produce life in subsurface oceans.

  • @luckyabdurrahman1085

    @luckyabdurrahman1085

    4 жыл бұрын

    In my opinion, life on the surface is the most profitable because of the photosynthesis, meanwhile if you are underground, photosynthesis from the sun is quite impossible, correct me if I'm wrong.

  • @BlackStar250874

    @BlackStar250874

    4 жыл бұрын

    @@luckyabdurrahman1085 Sure, there is no photosynthesis, but actually life could have started there, and migrated towards the surface. In 2007, 1.4 billion year old fossils of deep-sea microbes were found, and that supports the theory that life might have started there, and not in shallow seas.

  • @CharlesEBright
    @CharlesEBright5 жыл бұрын

    I just found channel today and I have a question but it may be dumb but I'll ask anyways LOL, How long would it take us to get to Proxima B and its sun?

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Glad you dropped by! Obviously it depends on how fast we could accelerate. The fastest vehicle we ever built is Voyager 1. At 60,000 km/hr, it would need about 76,000 years to reach Proxima Centauri. Obviously we need to go a little faster than that.

  • @Mirandorl
    @Mirandorl5 жыл бұрын

    Life around a Red Dwarf? Smoke me a kipper, I'll be back for breakfast...

  • @DukeOfChirk

    @DukeOfChirk

    3 жыл бұрын

    Ace Rimmer..... what a guy......

  • @davidhanson8728
    @davidhanson87284 жыл бұрын

    Just ran across you video. Very nice. I have thought about this problem for a while. My thought is that if the Red Dwarf there may be a better shot at life on a moon rather than planet in a Red Dwarf system. This would help with the heat issue. A large gas giant may also help shield it with a larger magnetic field (and hopefully not fry it with a radiation belt). I though through this several years when I first learned that any planet would most likely be tidally locked.and never seen anyone discuss this option.

  • @edmundkempersdartboard173
    @edmundkempersdartboard1735 жыл бұрын

    Chill, birds... Im learning stuff.

  • @dicerosautismambient4894
    @dicerosautismambient48945 жыл бұрын

    I've been looking for a video like this; This is a great video. Could a late class K type orange dwarf have a better chance of having life?

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thanks! And the short answer is ‘yes’ for K-types.

  • @emiliomencia7429
    @emiliomencia74295 жыл бұрын

    Excellent information based on scientific facts

  • @andrewroden9573
    @andrewroden95735 жыл бұрын

    Hi Christian another great presentation,I recently heard about a new telescope 'event horizon' that's looking at black holes would love to hear your views,worth a video?

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Stay tuned... :)

  • @andrewroden9573

    @andrewroden9573

    5 жыл бұрын

    @@LaunchPadAstronomyof course ;)

  • @keepmoving1185
    @keepmoving11854 жыл бұрын

    Very well done!! Do a coop with John Michael Gotier please

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    4 жыл бұрын

    Thanks! John’s a great guy and we probably should do something together again :)

  • @andylaweda
    @andylaweda5 жыл бұрын

    As a physics with astronomy graduate, and an H2G2 fan (Barnard's star reference0)and BBC "Red Dwarf" fan this is great in every way possible!

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thanks Andy, I couldn't help but notice the overlaps as well :)

  • @pipertripp
    @pipertripp5 жыл бұрын

    Christian, have you done a vid on K stars? They seem like a good compromise between longevity and stability, but no one ever seems to talk about them. They're not as common as red dwarfs and they don't live as long, but they seem like they might be much better candidates for life, or at least complex life.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    G and K stars are probably the best candidates for life for the reasons you mention. I haven't done a vid on K-type stars in particular, but plan to discuss the evolution of sunlike stars (F-K) at some point.

  • @joedasilva134
    @joedasilva1345 жыл бұрын

    Great video . The more information I get about other planets the more I realize how the odds r against life n how unique is our existence. Should I feel happy or lonely ?

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Thanks so much, I appreciate it. As for how we feel, that's truly a choice we can make :)

  • @joedasilva134

    @joedasilva134

    5 жыл бұрын

    Answer computed ! Please keep us sending more wonderful videos . Science gives meaning to life .

  • @gamesmore6583
    @gamesmore65833 жыл бұрын

    Could tidal locking be prevented if the planet had a large enough moon close enough to it for it's tidal force to offset the tidal force of the star? I don't see any defense against flares except for a very powerful magnetic field. Could the fact that the red dwarf doesn't produce much ultraviolet light offset the need for an Ozone layer?

  • @thomasgreenall9173
    @thomasgreenall9173 Жыл бұрын

    Can I get a t-shirt with I look confused because I have been self-educating with launchpad astronomy on it. It could really help to explain alot.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    Жыл бұрын

    There’s a lot to dive into :)

  • @willinwoods
    @willinwoods5 жыл бұрын

    That moment, which for me was about 8 minutes in, when all you hear is "barrgh narrgh starrgh" XD Good vid, as always.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Oh no, was there something wrong with the audio?

  • @osmosisjones4912
    @osmosisjones49124 жыл бұрын

    Maybe the plants use energy from the flares. Maybe life breaths different gas

  • @deepcoolclear
    @deepcoolclear3 жыл бұрын

    Now we get a signal from Proxima Centauri...

  • @davidroddini1512
    @davidroddini15125 жыл бұрын

    I have two questions about Proxima b. 1. Is it possible (given a large enough inclination) for Proxima b to be a gas giant. 2. If Proxima b were a gas giant, what about the possibility of it having a large rocky moon. The magnetosphere of Proxima b could protect the moon’s atmosphere if it orbited close enough to have say a 24 hour orbit; and tidal forces from Proxima b would probably cause the moon to have its own magnetosphere to protect against Proxima b’s magnetosphere. Such a moon would be gravitationally locked to Proxima b. But the side facing away from the planet would have a 24 hour day night cycle with Proxima Centauri transiting the sky much like the sun does with Earth. If the whole moon were habitable, the side facing Proxima b would not see the planet move across the sky. Instead Proxima b would stay in one spot but would go through the “phases of the moon” with a waxing crescent at “sunrise”; a “full moon” at noon; a waning crescent at “sunset” and a “new moon” through the night.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    That's a really interesting idea. The main problem however is that if Proxima b is a gas giant, it will have a very strong magnetosphere which would irradiate its moon rather than protect it. This is the problem the Galilean moons have at Jupiter, for example. So once again we're forced underground for the best chance of finding life. Bummer!

  • @davidroddini1512

    @davidroddini1512

    5 жыл бұрын

    Launch Pad Astronomy even if the moon had its own magnetosphere; which while not strong enough to completely shield it from stellar flares, is strong enough to help protect it from the radiation of the gas giant?

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    @@davidroddini1512 right, *if* the moon had a strong magnetosphere to protect it from both the star and planet's radiation (which is just more of the star's radiation that's been bottled up in the planet's magnetic field).

  • @tyROOne226
    @tyROOne2262 жыл бұрын

    An eternal sunset seems beautiful

  • @jsykes1942
    @jsykes19425 жыл бұрын

    Hey, those yellow-brown patches of grass shown in the background of the video are patches of wild bentgrass. There is no practical way to get rid of them. Fertilizing the lawn more often will help reduce those patches.

  • @anguscovoflyer95
    @anguscovoflyer953 жыл бұрын

    There are red dwarfs out there that are very quiet when it comes to flares. Such as Gliese 887

  • @wildbill7267
    @wildbill72674 жыл бұрын

    Further study is recommended!

  • @manw3bttcks
    @manw3bttcks Жыл бұрын

    Ice planets could have water under a protective layer of ice. An X-Ray flare might just melt some ice temporarily which would then refreeze. The ice and water could protect life down in the water layer from the radiation. Since the surface is usually froze it doesn't matter there's no atmosphere.

  • @Triliton
    @Triliton5 жыл бұрын

    Its still possible that Alpha Centaury A and B has planets around em too

  • @satanael9260

    @satanael9260

    5 жыл бұрын

    Maybe

  • @metalwellington
    @metalwellington4 жыл бұрын

    I think that planets migrating to a different orbit seems unlikely without some sort of collision which would also be deadly to life on the planet. is there another way a planet could change its orbit.

  • @lydiafaye494
    @lydiafaye4945 жыл бұрын

    You should have added the Trappist 1 solar system to this video...

  • @JennySimon206
    @JennySimon2065 жыл бұрын

    #PurpleEarth I saw an astrobiology hypothetical documentary where they hypothesized the animals would have enough time to get underground when they saw a flare. Also heard that a planet photosynthesizing primarily red light will turn the planet purple! Interesting the ancient gods are often depicted purple and blue. Purple pigment is rare in nature and the ancients weren't painting walls with it.

  • @ponytrekker9315
    @ponytrekker93155 жыл бұрын

    Life evolving on a planet anywhere in our Milky Way galaxy alone will take a unique I say very unique circumstance to find all the right ingredients that can support life, especially intelligent life..it would be very interesting if we could ever find the answers to any of these questions.

  • @youtube.youtube.01
    @youtube.youtube.014 жыл бұрын

    We have a strong tendency to believe the life we know is the easiest way for life to form - because it's the easiest for us to explain. Our life studies could easily favor missing the identification of other life forms simply because of our relationship with life that we know. We only seem to recognize life that we can relate to, not anything else. What are the chances that life exists all around us and we are the life forms which are toxic to them?...much like an invasive species searching for a new host? I don't fully expect that we could handle the truth - when we change the criteria frequently.

  • @learnpianofastonline
    @learnpianofastonline5 жыл бұрын

    Very good! We know that Venus has no strong magnetic field yet still has a dense atmosphere. Could the same be true for planets orbiting red dwarf stars?

  • @jesseback3536

    @jesseback3536

    5 жыл бұрын

    No. The flares from red dwarfs are much, much stronger than the sun. Sun is a rare type of star that is very stable. Particularly stable about halfway through it's life, which is right now.

  • @tylerslagel5485

    @tylerslagel5485

    4 жыл бұрын

    No. Red dwarfs have much worse flares. And Venus does have a magnetic field. It’s generated through induction in its atmosphere. Its atmosphere is also composed of heavier gases that are not easily lost to space. Co2 and sulfur. An earth like atmosphere would vanish.

  • @dlivex9492

    @dlivex9492

    3 жыл бұрын

    @@zorbathegreek8339 The only best star that can sustain life is the Orange dwarf star cause it is less violent and it is much more warmer than the red dwarf star and planets do have to be so close to each other,The planets with a Orange dwarf star are little more spread out and the solar flares of that star is little more similar but a little stronger but a normal earth sides planet or a super earth sides planet can handle a Orange dwarf star plus that star life span can last up to 15 billion to 45 billion of years for life to keep on going and also evolve.

  • @dlivex9492

    @dlivex9492

    3 жыл бұрын

    @@tylerslagel5485 Actually no Venus does not have a magnetic field cause if it did obviously venus wouldn't be so hot.

  • @tylerslagel5485

    @tylerslagel5485

    3 жыл бұрын

    @@dlivex9492 That’s not how it works. Magnetic fields don’t shield planets from heat. They only block solar wind. They don’t block infrared radiation at all. Or light, at all.

  • @richarddeese1991
    @richarddeese19913 жыл бұрын

    Thanks. One might speculate that Proxima b is home to giant, intelligent tardigrades. But I think the real question is: could a planet in the habitable zone of a red dwarf star be *_made_* livable for humans. Well, this of course depends on our level of technology at the time, plus our willingness to use it for that purpose. The fact that our nearest stellar neighbor has at least one planet represents an opportunity. As our abilities increase, we will doubtless get a better and better look at this system. In the meantime, I find the Starshot mission to be quite intriguing. I can only imagine how it would galvanize the public - and the governments of Earth - to actually see footage of a truly alien world, no matter what it looks like. I've seen and/or read many, many things about terraforming Mars (for instance), that speak of putting a kind of orbiting shield between that planet and the Sun. The space industry has yet to actually begin around Earth, however, and we have some baby steps yet to go. But it will take quite a long time - probably a few hundred years at least - before humans have ventured well out into our own solar system. As close as Proxima is (it *_is_* called 'Proxima' after all), it's still going to be a huge leap for humans to even contemplate going there. By that time, we will doubtless have improved our knowledge and our capabilities quite a bit (assuming we're still around, and that nothing has gone badly wrong with our society.) Who knows? By the time we're well into our next phase of exploration, we might have the technology to actually heat the core of a planet, and possibly even provide it with a magnetosphere & an ozone layer. I approve of dreaming, as long as we wake up and use those dreams to fire our imagination here in reality! After all, one of my favorite KZread channels is that of Isaac Arthur, and he's unabashedly positive about everything. Thanks again. tavi.

  • @TheGodofcookiez
    @TheGodofcookiez4 жыл бұрын

    It’s sad to know that humanity will probably never be able to visit these worlds in our lifetimes

  • @Phoenixesper1
    @Phoenixesper14 жыл бұрын

    This video overlooked 2 big issues unique to red dwarfs that could either hinder or help life. 1. Red dwarfs typically don't produce UV light. In regards to the video claiming that red dwarf flares would destroy a planets Ozone layer, this really wouldn't be an issue in reality. Ozone predominately protects against UV radiation. On earth it's vital since our star pumps it out at huge quantities. But a red drawf produces next to zero UV light. Thus Ozone really isn't all that valuable to life, so it's loss in negligible especially if the planet has a strong earth like magnetic field. However there is a major down side to this as well. 2. A lack of UV light could prevent anerobic life from evolving at all. Complex life evolved on earth thanks to 2 major variables. The first is when cyano bacteria killed themselves off by pumping out oxygen byproducts, thus giving rise to more efficient anerobic bacteria. The second was that this anerobic bacteria had to then contend with UV light and thus did so by evolving new systems of regeneration, motion and energy aquistion. Thus complex life was born out of a simple need to defend against UV radiation. Without this need to defend, anerobic bacteria would have remained as simple as their cyano predecessors as there would have been no true filter pressuring change. On top of this, there are so many chemical processes that require UV light to happen that there may be nothing but cyano bacteria and anerobic bacteria on red drawf planets, because the chemistry is impossible to achieve.

  • @christmassnow3465
    @christmassnow34653 жыл бұрын

    We should talk more about K-type stars as well.

  • @ActivistVictor
    @ActivistVictor2 жыл бұрын

    Tbh I feel checking the moons of gas giants around red dwarfs might be a good idea. Moons would be tidally locked to the planet and not the star meanining they would still have some semblance of a day night cycle, they would be protected by the gas giant’s magnetic field reducing the effect flares would have on their atmosphere; and tidal heating might be a thing too which would keep them geologically active longer. The downside of course is that some of the closer moons to the gas giants would be subject to levels of radiation lethal to humans, but hey, if life evolved in that environment it would have billions and billions of years to find a way to cope with what we could never survive. After all, the deep oceans are lethal to us too, and they are crawling with life

  • @anguscovoflyer95
    @anguscovoflyer955 жыл бұрын

    There are also K type stars, which are more stable than red dwarfs, there are a bit cooler than our star but still warmer than a red dwarf and the second most common type of star in the galaxy. They provide good hope to find life.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Agreed. G and K types seem like the best bet.

  • @anguscovoflyer95

    @anguscovoflyer95

    5 жыл бұрын

    @@LaunchPadAstronomy maybe you could do a video on those stars and the prospects for life on those types of stars

  • @ccc822007
    @ccc8220075 жыл бұрын

    That would explain too why the Anunakki needed the gold.

  • @rodney73991
    @rodney739914 жыл бұрын

    personal think no dawf normal big star start die. but I heard small plants orbit dawf stars. not sure how this possible as sun use fuel normal grow big vaporizes plants. if plant that close enough to sun have liquid water maybe?

  • @jerw7671
    @jerw76712 жыл бұрын

    I could just imagine an alien species investigating our system and making assumptions about weather earth is suitable for life or not, and weighing all the positives and negatives.

  • @OmegaWolf747
    @OmegaWolf7475 жыл бұрын

    So does that mean I should cancel my time share on Proxima b?

  • @ACoroa
    @ACoroa5 жыл бұрын

    Are there any substitutes for an ozone layer?

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    Water can reflect away the UV radiation so undersea life can be protected without an ozone layer. But ozone is the key atmospheric defender against excessive UV reaching the surface.

  • @ACoroa

    @ACoroa

    5 жыл бұрын

    @@LaunchPadAstronomy Thank you for responding. I guess I'm a bit curious about the flexibility of nature to defend against ionizing radiation. Since there are hundreds of thousands of chemical combinations, I would expect there to be more possibilities for atmospheric defense beyond only ozone. I guess O3 is probably the simplest. Anyway, thanks again.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    5 жыл бұрын

    I'm a little rusty on my chemistry,@@ACoroa so don't take my answer as the definitive answer on atmospheric UV defense :)

  • @JungleJargon
    @JungleJargon5 жыл бұрын

    Life has to be ordered. Yes, you can expect there to be a hole(s) in the fabrication of time and distance. It's a physical fabric of woven forces. It works great at larger scales (and falls apart at smaller scales). It isn't much of anything at smaller scales and it isn't much of anything when compared to infinity at least in our region of space. On small scales, there isn't much taking place because there is not much room for much of anything to take place. One scary thing is when particles can be connected regardless of distance because that puts things beyond our control. FYI, things never were in our control. We have been out of control almost since our inception. We are things that cannot make ourselves and we cannot even repair ourselves because we don't know how we were made. The best we can do is to see that we were made and are repaired by a preexisting written set of instructions. When our set of instructions become corrupted, they fail to repair us and we die. We hope for a better day when truth and understanding will be able to prolong our days and that takes a lot of work. We have serious issues aside from our physical well being. If lies were banned, we would be doing a lot better since so many people are confused by the lies they are told so their actions are far from reasonable or sensible. Many lifetimes of study is not enough to make things right because of how confused people are. People refer to their ancestors as goat-herders and that kind of disrespect is not conducive to learning. Infinite regress of greater and greater power and wisdom of the sort that made us can only arrive at the all knowing, all powerful, eternal Maker of time and space where we find ourselves. An inferior maker would self destruct. Our Maker is holy and altogether right. As wrong as we are, we can't even understand what is true and right and then again, we are dying because of it. We don't have all wisdom, understanding and knowledge. We are looking for whatever is left of us to be salvaged. Only our Maker can perfectly cover for us Himself and remake us again from the inside out by the power of His true word as no one else can. You can learn a lot from goat-herders.

  • @Knaeben
    @Knaeben Жыл бұрын

    He has a portal to Proxima Centauri in that little shed

  • @suthinscientist9801
    @suthinscientist98014 жыл бұрын

    The biggest problem with red dwarf stars is that planets in their habitable zones might be tidally locked. Tidal locking would mean one hot side and a cold one, unless the atmosphere is substantial enough to redistribute the heat. At the outer edge of the habitable zone, tidal locking is much less likely.

  • @peterwhittle522

    @peterwhittle522

    2 жыл бұрын

    We could make that system ourselves. Run long lines of pipes to the "hot" side to heat up fluid and pumped back to the dark side to give heat and energy to civilisation. Much like how Iceland uses geothermal energy right now. I think if we've managed to get that far into space, we'd have something figured out. Hell we may even get to a point where we don't even need a star at all

  • @Rockit-
    @Rockit-3 жыл бұрын

    I hope we are pleasantly surprised and life adapting to some serious conditions, just hope when other science platforms come on line like the James Webb telescope and others like it will give us a more answers, will be interesting to find out,,,,and i think we will find out soon enough...within the next 20 years or so - hopefully.

  • @Garbanzo884
    @Garbanzo8844 жыл бұрын

    Proxima Centauri is a very active flare star. Being that close the X-rays from a solar flare would be brutal. Secondly, the ONLY WAY Proxima B would have a viable atmosphere would be if it had a very strong magnetic field otherwise the solar wind would have stripped its atmosphere eons ago.

  • @TheRizMeister
    @TheRizMeister3 жыл бұрын

    I'm thinking of writing a sci-fi book and wanted one of the aliens' planet to orbit a red dwarf. This video really helped me to flesh out their world and appearance, as well as come up with a little bit of history for them. OK so I've taken so scientific liberties but that is why it's called science fiction. Thanks for this video

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    3 жыл бұрын

    That’s fantastic, best of luck on your novel!

  • @Dragrath1
    @Dragrath14 жыл бұрын

    KZread's algorithm hid this from me until now... sigh figures who knows how many interesting channels lurk out there? Over all great coverage of what was known at the time about red dwarf stars and potential for habitability as we know it. One of the more worrying prospects related to Red Dwarf planets having atmospheres is the potential for planets within the habitable zone of low mass red dwarf stars with their own intrinsic magnetic fields to experience direct magnetic reconnection events with their stars corona along their magnetic poles. Such an event would be utterly disastrous for any atmosphere a planet orbiting a M dwarf star might experience to say the least....

  • @user-it2kq4ty9q
    @user-it2kq4ty9q3 жыл бұрын

    what about trappist

  • @genegroundjr3502
    @genegroundjr35024 жыл бұрын

    Speculation interesting what about the fact highly unlikely that there's any life at Proxima Centauri highly unlikely there's any life around Barnard's star it's so unlikely the truth life here on Earth yet here it is it's pretty special it's very special in the universe yeah I think maybe just one time

  • @pepperVenge
    @pepperVenge4 жыл бұрын

    Perhaps there's a Brown dwarf out there that doesn't spit off flairs as often as Barnard does. If that was the case, a planet would stand a much greater chance to develop life. Not exactly related, but One thing that I find fascinating is that star systems with a single star are very rare. Most star systems have at least 2 or 3 stars, with the average being 5.. Some have as much as 7 or 8 stars. Our solar system is among the more rare kind with only one star.

  • @bartolomeestebanmurillo4459
    @bartolomeestebanmurillo44594 жыл бұрын

    Life is tenacious. If Proxima B is indeed habitable for complex life, such an ecosystem will be unlike anything. Adapted to the conditions of living in a higher gravity environment and under an active red dwarf. Organisms would see in the infrared spectrum, flora would have to be black to absorb the weak light. Noon on such a place would resemble a late afternoon to dusk.

  • @infobeam1902
    @infobeam19025 жыл бұрын

    Why not? Wouldn’t there simply be a shorter habitable zone and therefore also be smaller planets? I’m thinking the red dwarfs super novad with less mass so less material for planets and thus a relative solar set up. Would this also mean smaller life forms? Or larger with less stress from a smaller gravitational pull? Bah endless variables

  • @kentscoffey
    @kentscoffey4 жыл бұрын

    Why would prox. B be tidally locked?

  • @caricue
    @caricue4 жыл бұрын

    I feel that you could be a little more open about how speculative you are being in trying to describe the conditions on a planet around a red dwarf and how life might survive there. If we were able to go to one right now, what we would find would not only be stranger than we imagine, but stranger than we can imagine.

  • @LaunchPadAstronomy

    @LaunchPadAstronomy

    4 жыл бұрын

    I'm sorry if you felt I wasn't being speculative enough. I thought my video was entirely speculative, based on our best understanding of red dwarf stars.

  • @caricue

    @caricue

    4 жыл бұрын

    @@LaunchPadAstronomy Thanks for the reply, and I'm sorry if I sounded rude or presumptive. My pet peeve is the same as Socrates. I feel it is most important to know what you don't know as the basis for seeking knowledge. I understand that you are applying the best current understanding of stars and planets, but I'm a stickler for observation. I'm sure you would love to see those close up pictures even more than me!

  • @JoakimfromAnka
    @JoakimfromAnka4 жыл бұрын

    How about a video about F type stars?

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