Neil degrasse Tyson Ingredients for Life: Water

[leviterande]

the question killing me is if water is really a requirement for life? what if we are way wrong and life does not need water at aaaaaaaaaaaaaaaaaaaaaaaaaaaall­lll

[PattayaBen]

@leviterande ... That is a compelling question and truly amazing because life could be everywhere then ....

[leviterande]

@PattayaBen think a bout it or look up one of the hubble star clusters images. even if life need water and the same conditions as on earth , life is is too frequent in the universe, its a matter of logic

[benthemiester]

Neil show us if it is really true and provide empirical evidence that life exist on other planets or anywhere else in space. We now know through empirical science that life is not as simple as "just add water" Its a fascinating thought, and if we ever discovered it, I would have to accept it as fact, but until then SETI is in the same categorie as Bigfoot, Leprechauns & sightings of Elvis. Although I once saw a UFO when I was 18. Of course I was on LSD at the time but what the hey.

[bombarderoazul]

I think we should colonize the dwarf planet Ceres instead of mars.

[TheShinedownfan21]

@RespectMyHate Okay, you're not a jerk. Your'e an ignoramus.

[RespectMyHate]

@TheShinedownfan21 EAT A DICK

[TheShinedownfan21]

@RespectMyHate NOW you're a jerk.

[Polydynamix]

screw out whole solar system, 8 years at near light speed travel and we could be at alpha centauri. Unmanned telescope with all of our best sensors and a non stop transmission from earth. We can achieve near light travel in only 3 years using a few planets as sling shots and pulse propulsion. Throw a few rovers in there and the when the ship gets there use it as a satilite to relay data from the rovers.

[deeppurple28]

Creationists = FAIL!

[O2streaming]

Natural selection is a system of pruning away as well as a genetic-mutation or drift, what ever is not selected for or selected out, by happenstance, becomes extinct.

[RespectMyHate]

Earth is the only place where life exists. Science will never find life on any other planet.

[AleximusMaximus]

@RespectMyHate A claim as bold as it is asinine.

[RespectMyHate]

@AleximusMaximus Mark my words. LOL the scientists can't even find liquid water, and they think thier going to find life. FUCK OUT HERE.

[AleximusMaximus]

@RespectMyHate lol, apparently you were so lost by all the long words you missed the part where there's probably an enormous ocean within Europa. But then, you're probably just a troll.

[RespectMyHate]

@AleximusMaximus PROBABLY AN OCEAN ON EUROPA this comedy at its finest. I'm not a troll. There not going to find an liquid water ocean beneath the surface of europa and their certainly not going to find life, You have to understand that life is special it was designed with a purpose by God.

Thats the purest form of truth your going to get.

[AleximusMaximus]

@RespectMyHate lol, sorry if you're not a troll, but a genuine, sincere religious nutbag.. but you're just indistinguishable from a troll to me.

[RespectMyHate]

@AleximusMaximus If your an atheist, evolution type person check out PPSIMMONS channel you just might convert.

[MrDominex]

@RespectMyHate Religious proselytizers should be careful about making predictions that are likely to be proven one way or another in the near future. Europa and Enceladus likely have liquid water. As to the existence of life-- that is likely to be found wherever we find conditions are Earth-like-- and there are many such planets around stars in our galaxy. There is no evidence to support the notion that life is or anything else is "supernatural" in origin.

[RespectMyHate]

@MrDominex Life is to complex to arise without an intelligence, Life just doesn't spring into existence just because conditions are right. I don't think people understand the magnitute of such an event. If it were that easy man should be able to create a pure form of true life in a lab.

But some people would just leave it up to time and chance. Time and Chance= the impossible becoming possible, This is modern day science and its truly sad.

[MrDominex]

@RespectMyHate QUOTE: "Life is to complex to arise without an intelligence."

That's a mere assertion, not a proof. What evidence can you offer to back it up? Do you have an example of intelligence creating living organisms? No. By what means did your gods create life? Can you offer any specifics? Natural forces produce a wide variety of complex forms without the aid of intelligence-- what makes life different? Why don't Creationists have an ax to grind with planet formation?

[RespectMyHate]

@MrDominex God created the planets too. Can you show me one video of a planet forming? NO, becuase nobody has ever seen such an event.

I believe in an eternal God, I have more then enough proof that he exists.

why don't you open an anatomy and physiology book, and you will see.

To believe that these advanced system arose by chance, and random processes is insanity.

And yes evolution is a random process, based on random mutations.

[MrDominex]

@RespectMyHate Genetic mutation is random, but natural selection is not-- the traits that are passed on to succeeding generations are determined by survival value, which is intimately connected to changes in the environment. In fact we do have "video" of planets forming around other stars. There are more ways to observe something than see it with a conventional camera. It's OK to believe in your favorite gods, just don't use science to prop them up unless you want to be ridiculed.

[RespectMyHate]

@MrDominex But the selection is based on who lives or dies based on random mutations, so the whole process is random.

I have a question for you.

How would the human race go about evolving a fully functional wing system, based on the evolutionary theory?

I believe this is a valid question since some animals have wings and can fly, but in the past they didn't acc to evo

Now I have seen the richard dawkins video were he tries to explain it, but he doesn't explain it from a genetic perspective.

[MrDominex]

@RespectMyHate Humans wouldn't evolve wings, but dinosaurs did. We know this because of the physiology of fossil dinosaurs that show primitive wings, the geological strata in which they are found, and the genetic relationship of birds to the dinosaur's other nearest living relative, reptiles. The exact circumstances-- gliding from trees, or running and leaping, with successful leapers/gliders gaining a reproductive advantage that allowed succeeding generations to flourish, are debateable.

[RespectMyHate]

@MrDominex But you still haven't stated why humans would never evolve wings. If a dinosaur could why can't a human? can you please explain this on a DNA level. what had to have happened for the dinosaur's DNA to go from not having wing DNA to evolving wing DNA? and do you understand the magnitude of such a feat. If humans start leaping and gliding from trees and the ones who are the best leapers reproduce, over 1mil yrs, we might have wings? PS Fossils don't prove evolution.

[MrDominex]

@RespectMyHate I don't know that humans would "never" evolve wings-- you can't predict the future of evolution any more than you can predict the future career path of someone in the first grade, because it depends on unknown environmental factors, You CAN assess past evolution if you have the evidence. I can't explain to you how DNA and natural selection work together to produce new species in only 500 characters, but that information is easily available if you are really interested.

[RespectMyHate]

@MrDominex I want to hear you explain it.

mabey if you tried you'll see how rediculous, the theory of evolution really is.

For it to get so many things right, and then transfer the info into DNA, and for it to work its impossible.

[MrDominex]

@RespectMyHate You look the information up, learn how evolution works, then write your understanding of it in a brief paragraph. If you can't do that and do it with an accurate understanding of the process according to accepted scientific theory, you are too ignorant for me to reply to.

[RespectMyHate]

@MrDominex Look I'm a science major, and my professor says the same thing to me, even though I got an A in her class, she will say "well maybe if you studied about how evolution works you would understand it", and I said, I passed all you tests regarding evolution, and I don't see anything being explained on a DNA level. The point I'm trying to make is. These mutations have to happen in the right spot and in the right order for it to be beneficial. Its impossible.

[MrDominex]

@RespectMyHate It's hard to believe you are a "science major." Look for videos by Dr. Jack Szostak (Harvard Prof. of Genetics) to see discussion of the evolution of DNA from amino acid polymers. There is is a lot of information available on the connection between life and non-life; you are willfully ignoring it in favor of repeating Discovery Institute (fake science scam artists in Seattle) head games. Have you seen the series, "Why do people laugh at Creationists" on Youtube?

[Polydynamix]

@RespectMyHate I know this comment is old, but seriously man, you're lying. Colleges don't use A B C D F grading systems.  So you are either lying or you were in college in 1964.

[RespectMyHate]

@Polydynamix Your sadly mistaken, colleges do still use letter grade systems but the letter grade converts to a number, for instance an A is a 4.0 a B is a 3.0 etc.

[MrDominex]

@RespectMyHate The Hubble telescope has captured images of planet formation. Planets form from collisions within a disk of material orbiting a star. No sign of the "hand of God" involved, though.

[RespectMyHate]

@MrDominex Your lying, and send me a link.

[MrDominex]

@RespectMyHate Do you think you can type "Hubble planet formation" into google search you poor little jerk?

[RespectMyHate]

@MrDominex yeah I did, and all I got was an animation and 4 pictures of some thing in space, they said it was the missing link to planet formation, nothing concrete though. and don't call me a jerk again.

[pwnUgood]

@RespectMyHate JERK.

[HPoelzig]

@RespectMyHate QUOTE: "and don't call me a jerk again."

What a jerk.

[thetruth3574]

@RespectMyHate I you don't want to be called "jerk," stop acting like one.

[MRobert2l]

@RespectMyHate "and don't call me a jerk again."

What'll you do, cry? Jerk.

[Hogagger]

@RespectMyHate

THE PLANETARY FORMATION DISKS ARE THOUSANDS OF BILLIONS OF MILES AWAY, WHAT DO YOU WANT A CLOSE-UP? WHAT ARE YOU EVEN DOING ON A SCIENCE THREAD ANYWAY, YOU LITTLE DUMBELL.

[RespectMyHate]

@Hogagger You know what I love about this type of psuedo-science? Its the fact that evertthing is either trillions of miles away and we can't see it, or takes millions and billions of years to happen and we never see it, just like a fairy tale long ago and far away. when will you people open your eyes to true science.

[MrDominex]

@RespectMyHate Are you clliming that disks of planetary material haven't been observed by Hubble arround stars outside our solar system in various stages of planet formation? This has been science news for over a year. The physics of planet formation are fairly well understood by now. Why not look at some of the many YouTube videos on the subject and educatge yourself?

[Hogagger]

@RespectMyHate Take it easy on, RespectMyHate, people, he's just a dumb kid.

[eatmylogic]

@RespectMyHate You ARE a jerk.

[MrDominex]

@RespectMyHate Religionoids like to make loud proclamations about the future and when their predictions are proven false they simply fall silent, fail to admit they ever made the claims and switch to some other pompous declaration that hasn't been disproven yet. Life, like volcanoes, lightning and earthquakes, is a natural process that cultists try to present to the gullible as evidence of the "supernatural."

[slugger681]

anerobic life doesn't even need oxygen

[brt5470]

@slugger681 Isn't that the definition of anaerobic? lol

[AsG1989]

europa & titan ftw

[hornetpalooza]

Yeh. screw Mars, it had it's chance with the rovers. Let's drill Europa or put rovers on Titan.

[hismadjesty]

Yeah. Titan. Good luck with that. Need a nuclear reactor just to keep the lights on.

[claton95]

@hornetpalooza titan? what are you talking about

[ARandomCanadian]

Where's the proof that you need water to make life?

[BulletMagnetOWI]

It's essential to life on Earth, all of its properties from being dipolar to being transparent, are without peer. It's conceivable that other solvents might be used elsewhere, but such biochemistry based on a non-water solvent could only be sluggish and inefficient. Liquid water is a boon not only to biochemical processes, but physical processes that drive the geological, hydrological and atmospheric systems that create and maintain the global environment in which life can thrive.

[ARandomCanadian]

Silicom bitch!

[slugger681]

@ARandomCanadian oh ya you're smarter than Chris Mckay who works at NASA Ames Research Center.

[ARandomCanadian]

All he did was study life on earth then he decides to do a whole bs theory about how life is only possible from water

[ferrett78]

@slugger681 NASA Ames happens to be where The NASA Astrobiology Institute is... So I'd agree that they probably have a fair idea of what they are looking for. :-)

[Fadeux]

Tyson will be the next Sagan if he has the guts to speculate a little bit...

[bdf2718]

Thanks for the video. Another guy to add to my list of people who know what they're talking about and can express it well to others. Dawkins, Feynmann, Sagan and Tyson.

[Frosttty]

I met him a couple of weeks ago. He was pretty cool.

[birdfancier10]

When did Neil make this video? There have been some interesting discoveries about Titan and Encelados from the Cassini mission in the last 12 months.

[muchachaverdeygris]

what if they did an experiment where they send a robot to create puddle on mars and put tiny organisms that live in similar conditions here on earth in it and see what happens?

[piratebri]

The puddle would dry up in a matter of hours.

[SaamAzargive]

if we did hypothetically.... would they think of us as gods?

[eyeSIREN]

look up books or online about terraforming mars. When I was in high school I did a presentation on ways that are being researched to make mars habitable for humans.

[joshuahg]

that puddle would evaporate instantly.

[iarnailiel]

They said, that Mars lost the most of its atmoshpere, and that was the reason it also lost water. If it could keep water, what do you think all those oceans went, that created those rocklayers?

[Nerusai]

The real funny thing is that if there are other places that can sustain Terran life forms, it might actually contain non-alien life. Rocks from earth are frequently launched into space, and microbes can survive quite well there too.

Turning this around, life on Earth might be from somewhere else as well. (As a side note, to contain the human legacy, we might want to try infuse a survivor bacteria with human DNA, so in case something bad happens, life might start a bit faster somewhere else.)

[xeige7]

I would be thrilled to the point of tears if plant like life was discovered or even microbes or, lower still, self replicating molecules.

[ithanaias]

Self replicating moleclues would be amazing. They might give a few more hits on how life started here on Earth.

[Nerusai]

Well, in a way, every cell in your body is a self-replicating molecule. Just a bit more complex.

And as for the ingredients of life, all you need to start with would indeed be a simple self-replicating loop, after that anything is possible.

[Kaurotu]

A few of Saturn's moons have some high probability for life. Especially Titan.

[johnnyfatsac]

Ok, i appoligize for my comment, was a bit rude. I see what you are saying. That would be pretty amazing to find.

[KT45]

I doubt we will find any life in our own solar system other than the lifeforms on earth. If there is life it is probably just something similar to our plant life.

[johnnyfatsac]

I know you didn't mean it but that 2 sentence comment takes ignorant and arrogant to a whole new level.

[KT45]

What is wrong with what I said? I'm not talking about the entire universe or the milky way galaxy but just this solar system (earth, mars, venus etc). I doubt that within this solar system that there is life and if it is it is probably similar to simple plant life.

[romish12]

i agree with you kt45...johnny , u need to study about our solar system..lol..seems like u dont know nothing.. there might be life in jupiter's moons and mars..

[Brainmold]

HI KT45! Even if they only found a simple form of life, it would be a massive discovery.