Cosmic Journeys - The Search for Earth-like Planets

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  • Опубліковано 10 вер 2024

КОМЕНТАРІ • 420

  • @vovasoft
    @vovasoft 9 років тому +5

    Thank you guys for all this amazing documentaries narrated with with clear voice.

  • @1HarryH
    @1HarryH 10 років тому +34

    Fantastic Journey, thanks for sharing.

    • @surachatngangit4447
      @surachatngangit4447 3 роки тому

      จีบน้องแฟร์
      */ดั้นเจี้ยน/จีบน้องแฟร์*...//....//....
      */หลั้กฐาน/จีบน้องแฟร์ 4 แท่ม*
      */เอ่กส่าร/จีบน้องแฟร์ 2 ใบเบิ้ล*
      */หนั่งสือ/จีบน้องแฟร์ 1 เล่ม*

      */หลั้กฐาน/จีบน้องแฟร์ 1*

      */หลั้กฐาน/จีบน้องแฟร์ 2*

      */หลั้กฐาน/จีบน้องแฟร์ 3*

      */หลั้กฐาน/จีบน้องแฟร์ 4*

      */เอ่กส่าร/จีบน้องแฟร์ 1*

      */เอ่กส่าร/จีบน้องแฟร์ 2*

      -ตั่บ
      */หนั่งสือ/จีบน้องแฟร์ 1*

  • @Nygaard2
    @Nygaard2 10 років тому +9

    I love how this search for life combines so many fields of human knowledge. Even if we won't ever know for sure, the amount of things we have to learn and techniques we have to apply to search for habitable stars is well worth it.
    We don't to KNOW - we need to LEARN.

  • @HanSDevX
    @HanSDevX 10 років тому +11

    at 23:00 we see planet Nameku, where piccolo is from.

    • @-_glowing.redmoon_-
      @-_glowing.redmoon_- 10 років тому +9

      What a stupid nonsense. Freeza destroyed it.

    • @HanSDevX
      @HanSDevX 10 років тому +1

      lol

    • @troller504
      @troller504 10 років тому +1

      It's new namik. Remember the dragon balls lol

  • @SuperSaiyanMaze
    @SuperSaiyanMaze 10 років тому +143

    It saddens me that I'll be dead long before so many of these questions are answered.

    • @TimesHero
      @TimesHero 10 років тому +7

      ***** NO! :D

    • @knucks360
      @knucks360 10 років тому +27

      ***** I don't need hallucinogenics to live a good life, and I feel sorry
      that you do.

    • @knucks360
      @knucks360 10 років тому +11

      ***** k

    • @DirtyPoul
      @DirtyPoul 10 років тому +3

      ***** There are other and healthier ways of getting high than narcotics. Also do you smoke weed while watching these vids?

    • @knucks360
      @knucks360 10 років тому +8

      Wow, your life is so amazing, maybe if I smoked weed, my life wouldn't be so boring, and miserable.

  • @Expl0rati0n
    @Expl0rati0n 9 років тому +36

    I like to imagine that somewhere in the universe there is a solar system with 2 or more planets with life. If they discovered their closest planet had life they'd look out at the universe and think it's a common thing.
    On another note I can't wait for the James Webb Telescope!

    • @tarwagon
      @tarwagon 8 років тому +2

      +Expl0rati0n There simply has to be! Just the numbers of planets alone say there has to be life out there,and when you're talking about billions upon billions upon billions of planets, to think that we're the only planet that supports life in the universe is so incredibly arrogant and frankly quite stupid. If we have advanced life just on our planet alone, it stands to reason just by the sheer numbers of planets out there that life is quite common throughout the universe (there is estimated to be over 1000000000000000000000000 planets in the known universe) and intelligent life is probably not rare either. Coming in contact with other life forms is the challenge though, the distances between star systems is mind-blowingly distant ;)

    • @WeAreLegion1904
      @WeAreLegion1904 8 років тому

      +tarwagon where are they?

    • @tarwagon
      @tarwagon 8 років тому +1

      Like I said , the distances between star systems is a mind blowing far , far distance . So for other intelligent life forms to come in contact with us would take an EXTREMELY advanced species to be able to travel such over whelmingly vast distances, I would think life forms with such capabilities would be quite rare ( we are intelligent , but do not have the capabilities to travel to other stars , it would take thousands of years, lol)

    • @WeAreLegion1904
      @WeAreLegion1904 8 років тому +1

      +tarwagon If life was that common they would have had a billion years head start and even if they had no FTL travel they would still have colonized the galaxy by now. Luck how long it took us to get to the moon. Thats nothing in compared to the time other species had to evolve and reach interstellar technologies. Those 1000000000000000000000000 planets seem alot smaller of a number when you look at all the things it takes for life to evolve on a planet that had a very very lucky past. I used to think like you but the more I learned, the more I doubt it.

    • @ammarakbar4510
      @ammarakbar4510 6 років тому

      We all wish that but peoples of faith are adamant that we're on our own , and it's appeared so

  • @getAMCIVideos
    @getAMCIVideos 10 років тому +43

    I love astronomy and the programs about universe. Good show, this is.

    • @ajcook7777
      @ajcook7777 3 роки тому

      K yoda

    • @leeholmes9962
      @leeholmes9962 3 роки тому

      I'm with you mate room on the left action movie's room on the right documentrays about the universe that's were I'll be so much to learn have a great life my friend ✌🇬🇧👍

    • @leeholmes9962
      @leeholmes9962 3 роки тому

      @Gypsy Malone it's beautiful mate 👍 so much to see lose your fear and replace it with love and meaning have a great day mate 👍 🇬🇧 ✌

  • @McgoganLives
    @McgoganLives 10 років тому +16

    A wonderful new space documentary on UA-cam...
    Let the ecumenical arguing begin.

    • @labtumcm
      @labtumcm 10 років тому

      beckerist My religion actually believed in life on other worlds long before science did.

    • @MDMAx
      @MDMAx 10 років тому +5

      my god killed all ice giants, yo. do you see any ice giants around?
      check and mate atheists!
      thor 1:0 atheists.

  • @jas5953
    @jas5953 10 років тому +2

    My afternoon is set! I have been eager for this to be released

  • @jlorification
    @jlorification 10 років тому +7

    Space rip is just badass.

  • @oceandrainer
    @oceandrainer 10 років тому

    Best astronomy videos on UA-cam. Thanks again spacerip.

  • @no7926
    @no7926 10 років тому +10

    I can't even explain how awesome this video, and spacerip, is when you're high.

  • @ARISTOSMGS
    @ARISTOSMGS 10 років тому +46

    and the irony is we can't find a lost plane in our earth :P

    • @Caarnji
      @Caarnji 10 років тому

      ***** non sequitur...his hat is big, because it has to accommodate his big brain...and has an giant rabbit hiding beneath it. XD

    • @ARISTOSMGS
      @ARISTOSMGS 10 років тому +1

      wtf guys for one stupid joke all this ?????

    • @Eyes_of_Oryx
      @Eyes_of_Oryx 6 років тому +1

      *on ... not "in"

    • @wow-kt6dw
      @wow-kt6dw 5 років тому

      IN THE EARTH!

  • @kanyayeast
    @kanyayeast 10 років тому +8

    i love space

    • @MrQwerty2524
      @MrQwerty2524 10 років тому +6

      But space hates you and tries to kill you every chance it gets... :p

    • @infinightsky
      @infinightsky 9 років тому

      Well, mrqwerty, maybe space would like him if it got to know him a little better.

    • @MrSvenovitch
      @MrSvenovitch 6 років тому

      I wish you were in outer space already, a dead icicle.

  • @ajtronic
    @ajtronic 10 років тому +1

    I could watch this channel for days

  • @S3ODxG4MER
    @S3ODxG4MER 3 роки тому

    Alright, finally something to fall asleep to 👏😀

  •  10 років тому +6

    Very interesting !

    • @surachatngangit4447
      @surachatngangit4447 3 роки тому

      ตัดไม้ประสิทธิภาพสูง
      */ดั้นเจี้ยน/ตัดไม้ประสิทธิภาพสูง*...//....//....//....
      */หลั้กฐาน/ตัดไม้ประสิทธิภาพสูง 2 แท่ม*
      */เอ่กส่าร/ตัดไม้ประสิทธิภาพสูง 3 ใบเบิ้ล*
      */หนั่งสือ/ตัดไม้ประสิทธิภาพสูง 4 เล่ม*

      */หลั้กฐาน/ตัดไม้ประสิทธิภาพสูง 1*

      */หลั้กฐาน/ตัดไม้ประสิทธิภาพสูง 2*
      จา
      */เอ่กส่าร/ตัดไม้ประสิทธิภาพสูง 1*
      ลา
      */เอ่กส่าร/ตัดไม้ประสิทธิภาพสูง 2*
      ชา
      */เอ่กส่าร/ตัดไม้ประสิทธิภาพสูง 3*

      */หนั่งสือ/ตัดไม้ประสิทธิภาพสูง 1*

      */หนั่งสือ/ตัดไม้ประสิทธิภาพสูง 2*

      */หนั่งสือ/ตัดไม้ประสิทธิภาพสูง 3*

      */หนั่งสือ/ตัดไม้ประสิทธิภาพสูง 4*

  • @nathanroberson
    @nathanroberson 10 років тому

    This is one of the best videos on youtube. Maybe with our new tools it won't take 400yrs to connect to, and have the "flat earth" people accept new ideas.

  • @Derrick6162
    @Derrick6162 3 роки тому

    I love space science and space rip!

  • @Siddeo
    @Siddeo 8 років тому +1

    awesome video..

  • @benjimanmurray4204
    @benjimanmurray4204 8 років тому +9

    Hello Imgurians!

    • @zman3621
      @zman3621 8 років тому +1

      haha Hello!

  • @Letsawaketogether
    @Letsawaketogether 4 роки тому

    @SpaceRip you have a very unique voice for these kinds of content sir! Puts me in a relaxed state while my mind gets lost in the mystery of our universe.

  • @gcrady
    @gcrady 10 років тому +2

    SpaceRip > Cosmos,,, by far

  • @pohruixin5039
    @pohruixin5039 10 років тому

    I like this video too much !!!!!!!!!!!!!!!!!

  • @lucidfiredragon77
    @lucidfiredragon77 5 років тому

    I just like hearing Dick Rodstein narrate.

  • @Robbbbb1011
    @Robbbbb1011 10 років тому

    More people need to watch these videos

  • @alivstyson1864
    @alivstyson1864 9 років тому +7

    Very Interesting stuff but unless we can figure out how to travel at 5 times the spped of light or figure out how to warp space time its sorta a moot point.....unfortunately i don't think either of those things are happening anytime in the next 2,000 years

    • @harvirdhindsa3244
      @harvirdhindsa3244 8 років тому

      +Carl P Lol you think it will take 2000 years for humanity to transcend the light speed barrier? (Not literally of course but via loopholes i.e. warp drive, antimatter drive, wormhole, etc....)

  • @gwho
    @gwho 10 років тому

    epic music at the end. perfectly fitting of wonder, ambition, construction, and development.
    It would be perfect for the game Civilization

  • @BLAZENYCBLACKOPS
    @BLAZENYCBLACKOPS 5 років тому

    Bruno was way ahead of his time, especially given the lack of confirmed data he was working with, a true visionary.

  • @hentai6582
    @hentai6582 5 років тому

    listening to tool while watching this was not disappointed.

  • @AlexanderFresco
    @AlexanderFresco 10 років тому +1

    This is a beautiful documentary

  • @Baronstone
    @Baronstone 10 років тому

    I am so happy that they figured out a way around the problems that crippled the Kepler telescope. It supposed to begin taking measurements again in the near future.

  • @pneuner750
    @pneuner750 10 років тому +1

    Fabulous video!

  • @MartinBarreby
    @MartinBarreby 10 років тому +6

    Great episode! :)
    Though I don't belive thr human kind will ever travel to other planets (except for maybe planets in our own solar system), I am so happy that humans have been gifted with imagination. So in our heads and dreams we can be were ever we want in an instant. :)

    • @NeonsStyleHD
      @NeonsStyleHD 10 років тому +5

      Given enough time and resources, anything is possible. It's because of that possibility, we will find a way one day. One day, there will be a new place we call home. I just wish I was around to see it. As long as hope exists, and our with our need to explore, we will find our way to the stars, or die trying.

    • @MartinBarreby
      @MartinBarreby 10 років тому

      NeonsStyle Maybe! But until then I am happy with Sci fi! :)

    • @nonameherex8310
      @nonameherex8310 10 років тому +2

      We thought We would never fly an aircraft yet a few years or so after it was declared an aircraft wouldn't fly for 1 million years we did it in 1903 personally i believe we will achieve interstellar flight within 100 years possibly sooner its only a matter of time

    • @NeonsStyleHD
      @NeonsStyleHD 10 років тому

      NoNameHere X You sent your post to the wrong person... I never said the original comment which you replied to as if I'd said it. Remember, Click View All Replies n you won't make such a dumb mistake again. :p lol

    • @MartinBarreby
      @MartinBarreby 10 років тому

      ORRYIN NoNameHere X You are both right and I totaly agree. But with the super far distances and everything I have such a hard time belive it. But you are right, people stod by the shores of the atlantic and thought that a plane can never cross such a far distance, thats true. :)

  • @relax3250
    @relax3250 2 роки тому

    30 Dec Thursday 11:57 from INDIA ❣️

  • @TheManglerPolishDeathMetal
    @TheManglerPolishDeathMetal 9 років тому +3

    great speaker

  • @TheFirstGun
    @TheFirstGun 10 років тому +1

    You gotta love SpaceRip ^^

  • @grahamlive
    @grahamlive 10 років тому

    I love these videos. Always good to see a new upload. On the downside, I'm not a fan of the narrator, he makes the films sound a bit like movie trailers.

    • @grahamlive
      @grahamlive 10 років тому

      panskeptic Not sure I'd be a fan of Morgan Freeman voicing these either, fine actor though he is. The style of narration is bit too overdramatised for me. Just personal taste I guess. I may be in the minority. :)

  • @ETGR
    @ETGR 10 років тому

    Un reportaje mjy bien presentado, como siempre.
    Me encanta tus programas,¡Gracias!

  • @plasticpolice4972
    @plasticpolice4972 6 років тому

    I like space 😊

  • @amrikjohal3926
    @amrikjohal3926 10 років тому

    Very good know age video

  • @motherfuvkers805
    @motherfuvkers805 10 років тому

    Very nice documentary

  • @NeonsStyleHD
    @NeonsStyleHD 9 років тому

    Grrr I can watch any of your videos as HD but this one just won't play even at 144p. What's wrong with it and can you fix it please.

  • @shkotayd9749
    @shkotayd9749 10 років тому +2

    Superb video as always :D Thank you again for the education :D

    • @dropssergian
      @dropssergian 5 років тому

      Shkotay D Isn’t it funny that Copernicus knew how does the universe and Our solar system work, way before planes and rockets were built?
      That’s how pseudoscience began, because obviously most people didn’t agree with this new idea due to the lack of information and observations, yet the idea was introduced in books, schools etc.

  • @furbz8818
    @furbz8818 5 років тому

    Lay in bed, slowly drifting off listening to the wonderous stories of the universe then BAM!! Advert sucker, wake your ass up!!

  • @WintermuteGrey
    @WintermuteGrey 10 років тому +1

    Nice shout out to Giordano Bruno!

  • @billybobjohn8955
    @billybobjohn8955 10 років тому

    Can't imagine a world without America so "Yes" the trip will be worth it!

  • @213SEMPERFI
    @213SEMPERFI 10 років тому +2

    New video awesome!

  • @marywalton956
    @marywalton956 10 років тому

    I love it

  • @Infarlock
    @Infarlock 10 років тому

    Neil spoke about that guy at the first 4 mins in this video, not Galileo.
    In his show cosmos that was originally made by Carl Sagan.

  • @bobbyderest9363
    @bobbyderest9363 3 роки тому

    This is how I spend my nights.

  • @Jumbod007
    @Jumbod007 10 років тому +2

    Awesome … thank you … !

  • @Otakuonfire
    @Otakuonfire 10 років тому +7

    Unless we magically create wormhole/'hyperspace' tech or whatever other fantasy idea, that admittedly we'd all love to see, and i'm not saying is impossible, then I think we have to go for a "work with what we've got" method. Which would still require huge leaps in current engine technology and otherwise, but.
    1. Establish space elevator of some sort. We need to be able to get into space without it costing huge amounts of money at every effort, and using finite resources.
    2. How about... if we can find the necessary stuff, moving Mars, or one of the famous moons, INTO the habitable zone? Surely that's more plausible than traveling hundreds of millions of light years. At least for our expanding population and resource hoggery.
    I know it's all just as mental spasm, but at least it's something you could imagine doing, unlike say.... ascending to a higher plane of existence, which we have no frame of reference of outside pure fantasy.

    • @Kermthefrog
      @Kermthefrog 10 років тому +4

      I would have to disagree! moving a planet or a moon is just silly.

    • @antred11
      @antred11 10 років тому +1

      Ham Kerman
      Yeah, a few years ago when I was still a bit more optimistic (naive?) about the future of humanity, I was hoping that we might one day build something like the Island Three type colonies envisioned by Gerard K. O'Neill. These days I think we're lucky if we can delay the collapse of our civilization by a few more decades ...

  • @aqynbc
    @aqynbc 6 років тому

    thank you again for a great documentary.

  • @sawomirsztich5076
    @sawomirsztich5076 5 років тому

    Super

  • @jeevanshudhawan
    @jeevanshudhawan 10 років тому

    Even if we aren't able to build any spaceship that moves faster than the speed of light, we can definitely develop a mechanism by which humans who undertake such extreme journeys are kept under 'suspended animation'. In such cases even if the intergalactic journeys took millions of years the average human life span of 70 or 80 years would not matter. on reaching the destination the traveller could be brought back to life and there on complete his/her life span.

  • @motar8
    @motar8 10 років тому

    Awesome. .

  • @skylilly1
    @skylilly1 10 років тому

    Excellent! Thanks!!

  • @Risky2k9
    @Risky2k9 10 років тому

    This video really inspires amazingly .

  • @danielfranco7316
    @danielfranco7316 4 роки тому

    This is very interesting I love his narration.

  • @ShynyMagikarp
    @ShynyMagikarp 10 років тому

    What an appropriate time for this video:P especially after finding Kepler (kefler?"

    • @afrog2666
      @afrog2666 5 років тому

      It`s Kepler, not Kephler..

  • @MarcelleGeorge
    @MarcelleGeorge 10 років тому

    Earth is its own unique entity , there are most probably many planets like ours with their own individual uniqueness .

  • @Kebekwoodcraft7375
    @Kebekwoodcraft7375 5 років тому +1

    It's okay to shopping for other earth 🌏 but it a bit early since we can't go yet , will take long time before humans can travel those distances. !
    So it's window shopping !

  • @seanisawesome000
    @seanisawesome000 10 років тому

    this cosmic dance of bursting decadence twists all our arms collectively but if sweetness can win and it can then i'l still be here tomorrow to high five you yesterday my friend

  • @kpsting
    @kpsting 9 років тому

    'Galactic habitable zone' is such a stretch, though

    • @n_adoui
      @n_adoui 9 років тому +1

      kpsting I'd have to agree with the narrator, imagine if the earth existed near the center, where they are more star activity like super nova plus the radiation from the massive black hole, that wouldn't be nice

  • @eternisedDragon7
    @eternisedDragon7 2 роки тому

    Yes indeed, bacteria are near impossible to get out of a system once introduced to it. And that is an important part for why humanity has to avoid contamination of celestial bodies at all costs.

  • @tylervansant9452
    @tylervansant9452 4 місяці тому

    Chat GPT told me this is what I should watch while I’m high

  • @3800S1
    @3800S1 10 років тому

    Yes! been waiting for this.

  • @Jasmic0137
    @Jasmic0137 10 років тому

    fantastic as always

  • @valenin8891
    @valenin8891 10 років тому

    Thank You :)

  • @krisnadarma8222
    @krisnadarma8222 10 років тому

    Wow

  • @ArabiAna
    @ArabiAna 10 років тому

    Fantastic Channel, thanks to each one works on it.

  • @m-Bigil8190
    @m-Bigil8190 9 місяців тому

    (Include video time stamp to show proof of content being watched, this should include your UA-cam search phrase of “Solar System Planets” in your screenshot)

  • @Krabthegamer
    @Krabthegamer 10 років тому

    Great!

  • @flyinspirals
    @flyinspirals 10 років тому +1

    Earthlings! You are not GOING anywhere!
    If we had the enormous resources it would require to send nobodies like us to comfortable new quarters on other planets, we wouldn't have the problems making people hope to leave (or see the neighbors leave, so we can get their parking space) the gorgeous planet we're murdering. That's why we need to focus our resources on keeping this one habitable. Snap out of it.
    THIS IS NOT YOUR PRACTICE PLANET.

  • @maicolmarafigo2068
    @maicolmarafigo2068 8 років тому

    curto muito esse tipo de videos !!!

  • @TheKingdomOfDragons
    @TheKingdomOfDragons 9 років тому

    25:41 always like humans to think in a money sort of way lol
    but other then that i liked it (thumbs up)

  • @lolotvillacarlos9366
    @lolotvillacarlos9366 6 років тому

    Almighty GOD FATHER was having a GOOD WORLD without sunlight and without nights and COVERED by HIS POWER LIGHTS / This is BEAUTIFUL WORLD and for ETERNAL LIFE with GOD.

  • @MrPatrickmartin1985
    @MrPatrickmartin1985 10 років тому

    First love space rip

  • @juvinilebud
    @juvinilebud 10 років тому +3

    It is an honor for me to say....FIRST!

    • @JoTheVeteran
      @JoTheVeteran 10 років тому +5

      Enjoy your thumb downs. First round is on me.

    • @juvinilebud
      @juvinilebud 10 років тому

      Dammit haha would have been worth it but i wasnt even really first..spacerip all the way tho. An aspiring astrophysics major myself

  • @ykl178
    @ykl178 10 років тому

    Awesome

  • @CanadianGaming404
    @CanadianGaming404 10 років тому +1

    Good video
    First!

  • @richsrdwilson3287
    @richsrdwilson3287 6 років тому

    We are not alone

  • @GaryVuorela
    @GaryVuorela 10 років тому

    Hi a very interesting video.GARYV.

  • @Neueregel
    @Neueregel 9 років тому

    Great presentation

  • @kylebrooks4147
    @kylebrooks4147 10 років тому

    Loved it:)

  • @mattp.158
    @mattp.158 10 років тому +1

    New Episode!

  • @akalion2131
    @akalion2131 10 років тому +2

    0:53 Every motherfucking planet might support life, not every life has to be like on Earth!

    • @DriftLV1
      @DriftLV1 10 років тому +1

      There's a difference between supporting and sustaining. Think before you comment.

    • @jamiecassidy5118
      @jamiecassidy5118 5 років тому

      I think your right

  • @naxariisislamicmedia9278
    @naxariisislamicmedia9278 2 роки тому +1

    look how amazing is the creation of our god. and then some stupid people are believing there is no god or worship idols which can't create nothing.

  • @Arylice
    @Arylice 10 років тому

    Great video! ;)

  • @TheChats02
    @TheChats02 9 років тому

    I wish there were a way to turn off the big words which take up so much of the screen, That function should be optional

  • @HappyFamily-sn5zx
    @HappyFamily-sn5zx 10 років тому +1

    And then there is the possibility that these planets are inhabited by intelligent beings but dont need an earthlike planet to survive.

  • @minecraft2188
    @minecraft2188 10 років тому

    There has got to be life on other planets, I mean, how many galaxies are there out there? And how many stars are there in those galaxies ? What about all those planets around all those stars in all those galaxies?

  • @morsedruet1832
    @morsedruet1832 3 роки тому

    We have created from single cells and evolutionized by means of natural selection. So, animals or plants in other celestial bodies are most likely existing that we have not found yet.

  • @AdamOzkan
    @AdamOzkan 10 років тому

    Where can I get a song list for this video? I just love the sound track of these videos!

  • @Razielmn
    @Razielmn 10 років тому +1

    We'll never gonna find our earth like beautiful planet, but we possibly could find more beautiful large habital planet

  • @poissonCHA1
    @poissonCHA1 10 років тому

    i need to ask something... i know im gonna sound stupid... but i just dont understand why scientist presume that other liffeforms would need similar, if not identical, "circumstances" to exist. coulndt there be a lifeform that need the opposite of what human need to survive, for example ? and if affirmative, why are they looking only for planets with "our" lifeform... ? ... sorry XD

    • @poissonCHA1
      @poissonCHA1 10 років тому

      *****
      thank you for taking your time to answer me and for your explanation, its such a fascinating subject !

  • @mattfischer8996
    @mattfischer8996 10 років тому +1

    I wounder what will happen in the future

  • @jamiecassidy5118
    @jamiecassidy5118 5 років тому

    The thing that's wrong here is why do they assume that all life needs liquid water ? There could be other life forms from other planets that don't need it to survive or exist.