Hunting Aliens! Life on Other Worlds

[Crowntailluvr]

We're not finding life because we are looking for what *we* as Earth dwellers need to survive. That's the problem. We are searching in outer space for radio signals that *we* use.

If there is life more intelligent than us then they wouldn't be using our radio waves. Besides our radio waves are interfering with the delicate balance of our atmosphere. What about their atmosphere? I don't think people are looking too deeply into this subject..

[NaturalUniverse101]

It's hard to believe, as violent and extreeme as outerspace is, that us or anyone else out there, could travel in space.......

not to mention, if any intelligent life out there receives any transmissions from earth, we could be extinct by then (and vise versa)

just trying to keep it real ;-)

[Chaz0851]

imagine what creatures would be in the deep water on other planets. . . .

[olaftheblack2012]

I'm all for finding other life, but the thing is, unless it is more intelligent than us, we will pass it off as non-sentient, and assume that it is either threatening, or too dumb to do anything. Then, we will treat it like we do everything on earth, as though it is our tool, and we will have enslaved another species, Sadly, that is the nature of the human race.

[Charlie2Rock]

There is other creatures intelligent like humans, or maybe dumber than humans, or smarter than humans, I just don't know why the NASA searches for life on other planets, what if it's not on a planet, what if it was in space, like... Floating Aliens? I know that sounds stupid, but it doesn't have to be a planet...

[Bahamut1337]

Finding life on a planet would be much more likely and easier to find

[xx99strrxx]

lols maybe

[VanPup]

there is no medium in space they would implode

[Cruisefuckinkalem]

It doesnt sound stupid, highly unlikely though :) but with the billions of billions of stars(suns) out there, and with even more planets, its highly unlikely that there isnt life out there

[sweetvideos4all]

Everything needs a gas to survive and since space is a vacum no gases present in it then life could not grow.

[icelandownsmorrison]

Dude, are you completly forgetting that were just a small solar system in a HUGE universe? of course theres life out there

[StaticTheBand]

I don't see why there has to be water on a planet for it to have life? I mean, just because we need water to survive, and just because we need oxygen to survive, does that mean others need it too? I'm sure if there were any other lifeforms in the universe, there would definitely be a change in the things needed to survive.

[Thuringen]

water is the most abundant molecule in the universe next to diatomic hydrogen. It is found countless places in our solar system and possibly even in the universe. since we know that it led to and supports life on this planet, and considering it's ubiquitous nature in the universe, it is logical to relate the search for life to the search for water.

[VanPup]

life started in the water on earth or so the theory goes, and water has been a good catalyst for life in any situation, but dont know why

[pAttiex33]

I think it's because it's difficult to tell if there;s oxygen. If there's water, there's obviously oxygen. Something like that..

[Dudekahedron]

well i used to agree with that sort of outlook, however i took a biology course last semester and it is ridiculous how much we use water. Its in our DNA, our fat, our sugar, our cell walls, all our cell pieces, we use it to cool ourselves, to transport stuff, to grow stuff, to give birth to stuff, to warm stuff, to digest stuff and the list goes on and on, and sadly its left me with some doubts on the different ways life can work. However, nasa is investigating Methane as an alternative to h2o

[lilshaz0]

There are many reasons why water is important for life and not just because we personally need it to survive. First is that it works as an extremely effective solvent to help dissolve compounds into usable substances (why we get thirsty when we eat). Another is that it has a high specific heat and a unique property of being less dense when in its solid form which helps to regulate global temperature.

[lilshaz0]

Another is that it has capillary action that is necessary for plant life to function. I believe there is another major reason but I can't think of it right now. Basically, every living thing from humans to microorganisms, depend on water to function on Earth. That doesn't necessarily mean it is universal, but based on our current knowledge of how life works, that is the most important thing to search for based on its unique properties and availability.

[icelandownsmorrison]

I understand what your saying, but water is everything, no matter what

[iJeaxDOTcom]

You'll find that its referred to 'life as we know it' needs oxygen and water to survive. We have yet to find any life forms that can survive without oxygen and water to start the life process, and so until we prove that wrong its safe to assume life needs oxygen and water to survive, but its not been ruled out. Its simply based on what we know about life as we know it (Aka what we refer to as life)

[MrSensei]

what happens when you put a plant on mars or the moon, Lol i want to see a video of that

[ryuBones]

The plant dies because it needs oxygen. That's what happens.

[JRGOLD1330]

cool that was very scientific

[myname1sar135]

lol

[hitmankillzone]

there has to be life..we can't be the other one living..just think about it they found ice on mars! ice= frozen water=water=life

[GasMaskOath]

Did you forget about gas? what did they breathe?

Figure it out :P

[VanPup]

what about in other galaxies?

[Notsimpelgood]

I hope some day some Aliens will visit us... In peace tho... Then we can share things and visit them How fun would not that be :D

[mastabeals]

I highly doubt there is life in Mars. And if there is, I think they have to be scared of us, not us scared of them.

[8675698564678]

i thing there was life on mars like millions of years ago im talkin about 100's of millions years ago, there is proof that there were lakes and rivers on mars =D

[jaspr1999]

What amino acids are indicated?

[yawroc]

Why was it that before we sent the first probes to Mars, we obviously knew that the chances of finding life would be better if it were to be found in water. We looked at Mars and could see the polar caps of what was thought to be ice, in yet Nasa sent a the first probe to a desert area.

[WaysOfTheMaster]

They sent one to where they thought the lake bed was. It's not a desert, but they found it it was not a lake bed with rivers running out, but it was lava. What they thought was sedimentary rock was actually harden lava corroded by wind to make it look smooth. There is now a probe since August, 2008 that has been using a heated capsule to melt through the ice, and is said to melt through the 3-mile ice cap by February 2010, then we will know if there are actually organisms on Mars.

[WaysOfTheMaster]

We already found microscopic life in 2008, and I'm pretty sure it was before this video too.

[Supermutt18]

Because if a ice comet hit, it's only water, but NASA put it in what looked like a old, dry lake, which may have had life, or what was needed for life, in it.

[9collin]

sweet i love studying about space

[exiler200]

maybe life is in the planet.... maybe they retreat inside the planet ...

maybe...

[kaktus92]

Yeah, I'm thinking the same thing. Like, if Earth was threatened, and we did not have the technology or time to escape to another planet, we would most likely build bunkers underground to live in. Hopefully, the martians did just that! ^^

[LordTheNoob]

wow could there actully be life on mars?

If there is Awsome 1 thing tho hope we don't get invaded!

[Mathurankan]

Not only on mars we need to look out of this galaxy to other galaxies. In other galaxies there are planets. We might have a chance of finding humans as well because of the big bang theory. Well we are seperating from each other by the big bang theory.

[HohenwarterGuitar]

awesome work! i hadn't known about any of this until just now, and its so wild! thanks guys, good job!