but but but, water, organics, and energy are just what we know about our type of life. What if there is life out there that needs acid, sugar, plasma to live/be created?
the ingredients for life, aren't those just for life as we know it on earth? I mean there could technically be aliens who've evolved without water, we don't know how that would work because we've never seen it before
Yeah, he said that when he mentioned titan's methan lakes. However, most things that could support life are liquid at low temperatures and chemistry is slow at low temperatures.
This is the oint I always come to. I suppose he needs to be more specific and at the same time a little more open-minded, or at least acknowledge that life could exist outside the parameters that we exist in.
Hydrogen, Oxygen, Carbon, Nitrogen, Iron are abundant in the universe. So why should we look for environments that don't include them? Let's first find life anywhere else, then we can worry about defining in what range of environments it can exist.
Yes, but the options are 1-Look for conditions where we've seen life develop before 2-Look EVERYWHERE. We don't have infinite time, going with option 2 makes it a lot more likely we just waste a lot of time.
Because the sum of the parts makes up the whole? I'm just implying that we are all connected, which makes a unit of one. For example, you can say we are a platoon of soldiers or you can say we are all one platoon. You get the idea.
It's mostly basic chemistry. I'd say life needs 2 basic things: 1. A central element to "build" large molecules 2. Some way to generate energy For #1 we have carbon. Carbon can form single, double and triple bonds (while having another bond to a third atom), so it can form rings, chains and all sorts of things like DNA, amino-acids (proteins) etc. The only other element that has "similar" bonding capabilities is Silicon. But for silicon, most bonds are a lot harder to form, and rigid. #2: Any life form needs to store and use energy in some form. Plants for example turn CO2 and H2O to sugar or similar molecules, so they can use it for cellular respiration. Same goes for us humans, we turn large molecules like sugar and O2 into CO2 and H2O in order to generate energy for our cells. Sugar, O2 and CO2 are solvable in water, which is very convenient and allows organisms to process it quite easily. If we consider a silicon based life form, we need something like Silanols (large energy-storing molecules just like sugar). But if you oxidize them in order to get energy, the result is SiO2, which is just.. Sand. Getting rid of a waste product like CO2 is easy for us, but silicon based organisms would have a hard time getting that Sand out of their system.^^ Well, i'm not saying it's impossible, but it's a lot more complicated. Probably too complicated for tiny microbes. Personally, i don't think that life needs water or oxygen. But carbon is probably essential. Titan is my favorite candidates for life in the solar system, it just has such a massive sea filled with organic material, clouds, rain, rivers, a nice dense atmosphere.
Well, don't ask questions if you don't want to read the answers then. Anyways, to give you a short version: Carbon and silicon are the only two elements that can form a large number of compounds, which organisms need in order to work. Silicon however has a lot of disadvantages, making silicon based life much more unlikely.
Vaidas Šukauskas Finding life in one of those 4 places doesn't reasonably suggest that life is "everywhere" (i.e., relatively widespread) across the solar system. It _could_ reasonably suggest, however, that life is reasonably widespread across the universe.
Finding life on Europa or Titan doesn't mean there is probably life on Venus, but it does mean the is a good chance of life being in at least half the stellar systems in the galaxy.
Very accurate, and very up to date. I have been following this issue for a long time and with some dedication, and he is spot on, these are the locations that need further study.
this got me thinking, imagine somewhere in the universe there is a star system with 2 earth like planets, each with complex life. imagine how they would look up at their neighboring planet and see lights on its surface, and great green forests, and swirling clouds and oceans. imagine how they would feel when they finally managed to achieve space travel and meet their stellar brethren. how different their culture might be from ours. knowing other life was out there for most of their history would unite them as a species. would they even have war in that situation?
And what if there was a planet with no visible stars (other than their sun) or moons. And one day they became aware of life on other planets in one fell swoop. Why they might pick up their cricket bats and get xenocidal.
I mean yeah you're probably right but I just like the thought of it starting a society based on the knowledge that they weren't alone. Even if they nuked the other planet, they might still think of themselves as one collective group. Common enemy and the like. And that's looking at it in its least hopeful way. I don't know I just think it would make a good book. You could explore the different points of view among the people. The belief systems and other religious and cultural effects that might spring from this situation.
+You PC Bro? if there are I haven't seen them but there's gotta be. I mean a subject like this is dripping with social commentary. any author worth a buck would be lapping that up
Something like in the 2009 Wolfenstein. I think thats definitely possible. We are always developing tools to see what we cant normally see, for sure there are things we just aint attuned to. Dont mean to get mystical though.
This subject is amazing! It gives me a great reason to be happy to be alive and a reason to want to live! It makes the whole life feel like a great adventure, which it is but we often forget this! Thank you!
It depends from person to person.If we think it is enough what we have then good, no problem but it is our mind which never stop thinking and always in a voyage of exploration.so let it be
Its not a fail, its just misunderstood. Its not about life not existing outside the zone, its about life much more probably existing in the zone. On average, there should be more life in the habitable zone than outside it, but there still can be a number of phenomena that heat up a planet outside the HZ and allow it to harbour life.
What I have never understood is why do scientists think that life on another planet HAS TO have water and things that we on earth have to have. They may have evolved different and survive off other things. I just really don't get why we think this
You know I always believed that life outside of earth was almost 100% garentre but I never thought life on other planets in our solar system was ever posible
Gavin Davis life on other planets might have different living conditions for example on different planets those different life forms might not need oxygen or water
what evidence was suported that there could be. I heard what he said. his 3 organic must haves may not cut it. if these 3 must haves are indeed correct then yes he could be right but my stance is he doesn't know for sure what ingredients are needed for life. those were simply assuptions biased on earth. I guess this is one way to look at it but from the biblical worldview God didn't bless any life out side of earth. this doesn't mean it doesn't exsist but it does make a strong argument. all we need to do is look to Christ and his sacrifice on the cross. everything else is not that important.
Question, If there was a fish in Enceladus's ocean or a guy jumping on its surface how much of an influence would Saturn have on their weight as Saturn's gravity and Enceladus's gravity interact with the object at different points along Enceladus's orbit? + Is Saturn pulling Enceladus's water trough its surface to create the fountains?
In my opinion,we should not waste payload space in to rockets for exploration, it should be used for development of a power station,logistics for habitation water/oxygen generation.once that is established,send people to explore
I like how he said have to have liquid water, but then used the general term "solvent" as well. Sounds like he's open to the idea of life being on a body like Titan, living off of the Methane seas. After all, liquid water is probably the most common solvent in the Universe, but Ammonia and Methane aren't that rare either.
Just imagine... nasa lunches it’s Dragon Fly mission and after few minutes of its landing gets destroyed by a dinosaur or maybe by an arrow Come back I just told you to imagine 😁
Well, he made a mistake at the very end. He said "if we answer it, and the answer is positive, then life is everywhere in the solar system". He should've said "in the universe"
There may be life on electrons, living on a time scale infinitely smaller than ours. We may be living on an electron. What we think of as our universe may actually be an electron. We need perspective.
So just because life on Earth needs Water, Energy, and Organic Material means that life can't exist in other circumstances or if it does it's the anomaly? Who's to say we aren't the anomaly? When we drastically narrow our search to only earth-like planets, we severely limit the chance of finding life outside our own. The only plus to searching solely for these planets is that we will eventually need to leave our planet behind and begin anew on another. The problem is that currently we don't have the means to make that transition to anywhere outside of maybe Mars and Venus due to travel time. Just because can't survive on a molten surface (or whatever other example of an extreme planet you wish to use) doesn't mean there is no form of life that can exist on such a surface. There is marine life on our very own planet that exists at such extreme depths that the pressure makes even unmanned exploration nearly impossible.
Staring out into space looking for life when alien life is all around us. UFO sightings are everywhere I'm getting more and more prominent with the invention of cell phone cameras. Can't see the hand directly in front of the face
I thought this was going to be about Milkyway civilisations & Kepler. I'm not sure about life in our own Solar System, besides us, but Europa's a good bet. It'd be cool to have archaeological digs on Mars and to suddenly find a fossil of something, like how we found Dinosaurs and extinct creatures on Earth years ago. Side note, I love how this guy shouts 'Phosphorus'.
what if mars held life millions of years ago and turned out like what earth will eventually turn out like, dead. It had water which means it could have had life but it became exstinct, we are new.
These moons or I see on the surface yet being stretch by Saturn and Jupiter create Room temperature oceans underneath the Ice it would be more strange if there was no life in these oceans
What if... just what if we are actually from Mars? We could have originated from this planet, maybe we completely annihilated it through war or perhaps it was a tragic solar flare incident, something that decimated the surface
Think of this life only continues for as long as the planet is positioned in the perfect place. So the odds of life existing in our timezone now doesn't mean life exists elsewhere in our timezone, civilisation only last for milliseconds.
but but but, water, organics, and energy are just what we know about our type of life. What if there is life out there that needs acid, sugar, plasma to live/be created?
the ingredients for life, aren't those just for life as we know it on earth? I mean there could technically be aliens who've evolved without water, we don't know how that would work because we've never seen it before
Yeah, he said that when he mentioned titan's methan lakes. However, most things that could support life are liquid at low temperatures and chemistry is slow at low temperatures.
It's possible, but since the only life we know about needs them, it's what we're looking for.
This is the oint I always come to. I suppose he needs to be more specific and at the same time a little more open-minded, or at least acknowledge that life could exist outside the parameters that we exist in.
Hydrogen, Oxygen, Carbon, Nitrogen, Iron are abundant in the universe. So why should we look for environments that don't include them? Let's first find life anywhere else, then we can worry about defining in what range of environments it can exist.
Yes, but the options are
1-Look for conditions where we've seen life develop before
2-Look EVERYWHERE.
We don't have infinite time, going with option 2 makes it a lot more likely we just waste a lot of time.
Imo, claiming there is no alien life on those billions of planets is much more of an 'extraordinary claim' than to claim there is.
its almost impossible that we are alone
I'm alone.
***** thats why we have internet for, now you arent anymore :D
We are all one, so yeah, it's pretty much just you.
HigherPlanes If we are all one, then why do you use pronoun "we".
Because the sum of the parts makes up the whole? I'm just implying that we are all connected, which makes a unit of one. For example, you can say we are a platoon of soldiers or you can say we are all one platoon. You get the idea.
How do you know that organisms on other planets require the same things we do?
It's mostly basic chemistry.
I'd say life needs 2 basic things:
1. A central element to "build" large molecules
2. Some way to generate energy
For #1 we have carbon. Carbon can form single, double and triple bonds (while having another bond to a third atom), so it can form rings, chains and all sorts of things like DNA, amino-acids (proteins) etc.
The only other element that has "similar" bonding capabilities is Silicon. But for silicon, most bonds are a lot harder to form, and rigid.
#2: Any life form needs to store and use energy in some form. Plants for example turn CO2 and H2O to sugar or similar molecules, so they can use it for cellular respiration. Same goes for us humans, we turn large molecules like sugar and O2 into CO2 and H2O in order to generate energy for our cells.
Sugar, O2 and CO2 are solvable in water, which is very convenient and allows organisms to process it quite easily.
If we consider a silicon based life form, we need something like Silanols (large energy-storing molecules just like sugar). But if you oxidize them in order to get energy, the result is SiO2, which is just.. Sand. Getting rid of a waste product like CO2 is easy for us, but silicon based organisms would have a hard time getting that Sand out of their system.^^ Well, i'm not saying it's impossible, but it's a lot more complicated. Probably too complicated for tiny microbes.
Personally, i don't think that life needs water or oxygen. But carbon is probably essential. Titan is my favorite candidates for life in the solar system, it just has such a massive sea filled with organic material, clouds, rain, rivers, a nice dense atmosphere.
dabeste Too much reading.
Well, don't ask questions if you don't want to read the answers then.
Anyways, to give you a short version:
Carbon and silicon are the only two elements that can form a large number of compounds, which organisms need in order to work.
Silicon however has a lot of disadvantages, making silicon based life much more unlikely.
dabeste Dude, this is the RUclips comments section. NO ONE wants to read a 45-line message.
+Nate Some people do, especially on sciency-channels like this.
Aliens in a different planet are probably thinking that there’s life on a different planet too
The fact that i don’t have a jet pack, tells me aliens already know about us.
At the end there, I think he meant to say that life would be everywhere in the _universe_, not the solar system.
I agree. He misspoke. Or the galaxy, since anything outside the galaxy is too far away to make any possible difference to us.
I don't think so. He listed 4 placesin the solar system besides earth where life could exist. I think he meant solar system, not the universe.
Vaidas Šukauskas Finding life in one of those 4 places doesn't reasonably suggest that life is "everywhere" (i.e., relatively widespread) across the solar system. It _could_ reasonably suggest, however, that life is reasonably widespread across the universe.
Finding life on Europa or Titan doesn't mean there is probably life on Venus, but it does mean the is a good chance of life being in at least half the stellar systems in the galaxy.
There’s life in our solar system, galaxy, universe
Very accurate, and very up to date. I have been following this issue for a long time and with some dedication, and he is spot on, these are the locations that need further study.
this got me thinking, imagine somewhere in the universe there is a star system with 2 earth like planets, each with complex life. imagine how they would look up at their neighboring planet and see lights on its surface, and great green forests, and swirling clouds and oceans. imagine how they would feel when they finally managed to achieve space travel and meet their stellar brethren. how different their culture might be from ours. knowing other life was out there for most of their history would unite them as a species. would they even have war in that situation?
And what if there was a planet with no visible stars (other than their sun) or moons. And one day they became aware of life on other planets in one fell swoop. Why they might pick up their cricket bats and get xenocidal.
I mean yeah you're probably right but I just like the thought of it starting a society based on the knowledge that they weren't alone. Even if they nuked the other planet, they might still think of themselves as one collective group. Common enemy and the like. And that's looking at it in its least hopeful way. I don't know I just think it would make a good book. You could explore the different points of view among the people. The belief systems and other religious and cultural effects that might spring from this situation.
+You PC Bro? if there are I haven't seen them but there's gotta be. I mean a subject like this is dripping with social commentary. any author worth a buck would be lapping that up
+You PC Bro? tell me if you find one. if not I might write my own. lol
James Green turned a 1 min worth of info into a very entertaining 10 min. Good presentation.
IELTS preparation brought me here.
Imagine if dark matter harboured life. Once we could see it, alien life would be literally everywhere.
Imagine if empty space was actually solid matter and solid matter was the vacuum. It would sound pointless.
Something like in the 2009 Wolfenstein. I think thats definitely possible. We are always developing tools to see what we cant normally see, for sure there are things we just aint attuned to. Dont mean to get mystical though.
That's one way to send chills down your spine!
that was an incredible talk, so fascinating!
Turns out the ingredients for life are Courage, Wisdom, and Power. Huh
Absolutely fascinating.
Bravo!
This subject is amazing! It gives me a great reason to be happy to be alive and a reason to want to live! It makes the whole life feel like a great adventure, which it is but we often forget this! Thank you!
I'm quite optimistic that we are not the only and lonely in this limitless universe or multiverse:)
Are you suggesting there may be only ONE multiverse...? ;)
I'm saying there may me many universes but do you think there are many multiverses?:)Maybe possible:):)
i don't understand why does that even matter.
It depends from person to person.If we think it is enough what we have then good, no problem but it is our mind which never stop thinking and always in a voyage of exploration.so let it be
This is so uncertain... there's even scientist suggesting that life could be a simulation.
In case there is alien life, we need to build a wall between Earth and Mars, and make the Martians pay for it.
ahahahahaha😂
Oh wiw
awesome
Lmao
IHaveNoLife ILikeBoobsThough make earth great again
This guy's talk was FABULOUS!
Awesome presentation!
amazing and fascinating!!!
Super Superb!! Super Superb!! Super Superb!!
Thanks for sharing!
Fabulous!
Fabulous talk!
One word: fabulous.
Amaizing. Enjoyed
My neighbor is alien she snore so loud I can hear trough few walls
This is quite cool
+Öykü Özer What do you mean no?
+Öykü Özer Oh, lol
It’ll be shocking if we ‘were alone’ just a thought
Superb photos
Stanley Miller's 1953 SCIENCE paper is amazing.
Super Speech
fabulous
"Turns out this concept of a "habitable zone" we bunched together was a complete fail xD. Haha! Science. Thanks for listening."
Its not a fail, its just misunderstood. Its not about life not existing outside the zone, its about life much more probably existing in the zone. On average, there should be more life in the habitable zone than outside it, but there still can be a number of phenomena that heat up a planet outside the HZ and allow it to harbour life.
On the 26th day (4 days) they're going to announce something "significant" new findings considering Europa! Exciting!
What I have never understood is why do scientists think that life on another planet HAS TO have water and things that we on earth have to have. They may have evolved different and survive off other things. I just really don't get why we think this
So that we could live there
Excellent reasoning and. Presentation. There must be life elsewhere in the universe.
Water, organics, energy. = life as we know it ....
He fails to point out that life may exist in other ways that we dont know or understand.
this was cool
Wow what a nice video.......
Credit to the editer to go with the guy to all these palces
if you, random person here, are working on a warp drive, work harder! we need that thing a minute ago
You know I always believed that life outside of earth was almost 100% garentre but I never thought life on other planets in our solar system was ever posible
Gavin Davis life on other planets might have different living conditions for example on different planets those different life forms might not need oxygen or water
Some have said that the red color on Europa is actually colonies of some sort of life. We could be staring at alien life.
I swear my 3rd grade teacher is an alien.
Call will Smith somebody!
why?
If you want to keep her as a teacher, then don't vote Trump.
+Tom Leonard wait.. so your telling people to vote for trump or Clinton?
why, cause she's ugly ?
I would like to know more about the TR3B /C,D,E.
He seems to like the word fabulous.
i like this guy
I think finding out that we are alone in this galaxy is more terrifying than learning there’s aliens out there.
... Weeping water. Nice one, Shakespeare.
oh wow
After listening to this talk how could anyone think other life doesn't exist in the universe?
what evidence was suported that there could be. I heard what he said. his 3 organic must haves may not cut it. if these 3 must haves are indeed correct then yes he could be right but my stance is he doesn't know for sure what ingredients are needed for life. those were simply assuptions biased on earth. I guess this is one way to look at it but from the biblical worldview God didn't bless any life out side of earth. this doesn't mean it doesn't exsist but it does make a strong argument. all we need to do is look to Christ and his sacrifice on the cross. everything else is not that important.
Amaizing EnjoyEd a lot
if it's true.. think about the possibility of new ingredients for food!
Life is one thing, but intelligent life is quite another and probably extremely rare throughout the Universe.
I don’t know if there’s any in our galaxy or solar system , but there has to be something else out there somewhere
TED could you hand me those 1080p?
no
👍 They are hyper
Question, If there was a fish in Enceladus's ocean or a guy jumping on its surface how much of an influence would Saturn have on their weight as Saturn's gravity and Enceladus's gravity interact with the object at different points along Enceladus's orbit? + Is Saturn pulling Enceladus's water trough its surface to create the fountains?
In my opinion,we should not waste payload space in to rockets for exploration, it should be used for development of a power station,logistics for habitation water/oxygen generation.once that is established,send people to explore
You forgot one moon, keith moon was also amazing
Obv aliens live underwater. Again no one knows but they are real. :)
may I know why we are looking for life elsewhere(other than earth)?
"Come with me on my stupid fucking Journey" - Lewis 2016
Austin kinda proved how mars could have turned into the present day mars.
Maybe an alien is making you dance right now pulling the strings of life and laughing..(THEY ARE OUT THIER).
I like how he said have to have liquid water, but then used the general term "solvent" as well. Sounds like he's open to the idea of life being on a body like Titan, living off of the Methane seas.
After all, liquid water is probably the most common solvent in the Universe, but Ammonia and Methane aren't that rare either.
9:35 that looks like a fish
Just imagine... nasa lunches it’s Dragon Fly mission and after few minutes of its landing gets destroyed by a dinosaur or maybe by an arrow
Come back I just told you to imagine 😁
Mars has water but we can't find the life on the ground. Maybe we can find the life under the ground!
let's go to the mars :-)
We need to know the truth about our universe
Funny how some people on the comments section think they are smarter than a guy who's a director of planetary science at NASA lol
Well, he made a mistake at the very end. He said "if we answer it, and the answer is positive, then life is everywhere in the solar system". He should've said "in the universe"
i was his PE teacher i tought him squats. where do you think he got the NASA idea from
A director? MEH!
That's because they don't look down at themselves and their smartness.
Before i watch this video let me guess. Europa, Titan and i have no idea what the third one is.
There may be life on electrons, living on a time scale infinitely smaller than ours. We may be living on an electron. What we think of as our universe may actually be an electron. We need perspective.
Hoping Perseverance Rover can answer this question
❤
我们一定不会孤单
So just because life on Earth needs Water, Energy, and Organic Material means that life can't exist in other circumstances or if it does it's the anomaly? Who's to say we aren't the anomaly? When we drastically narrow our search to only earth-like planets, we severely limit the chance of finding life outside our own. The only plus to searching solely for these planets is that we will eventually need to leave our planet behind and begin anew on another. The problem is that currently we don't have the means to make that transition to anywhere outside of maybe Mars and Venus due to travel time.
Just because can't survive on a molten surface (or whatever other example of an extreme planet you wish to use) doesn't mean there is no form of life that can exist on such a surface.
There is marine life on our very own planet that exists at such extreme depths that the pressure makes even unmanned exploration nearly impossible.
Staring out into space looking for life when alien life is all around us. UFO sightings are everywhere I'm getting more and more prominent with the invention of cell phone cameras. Can't see the hand directly in front of the face
I thought this was going to be about Milkyway civilisations & Kepler. I'm not sure about life in our own Solar System, besides us, but Europa's a good bet. It'd be cool to have archaeological digs on Mars and to suddenly find a fossil of something, like how we found Dinosaurs and extinct creatures on Earth years ago.
Side note, I love how this guy shouts 'Phosphorus'.
what if mars held life millions of years ago and turned out like what earth will eventually turn out like, dead. It had water which means it could have had life but it became exstinct, we are new.
How could there be life out there if the main ingredient for life is fast wi-fi connection?
Venus is too hot, Mars is too desolate and the moons of the gas giants are frozen, there's no other life in the solar system
In the immortal words of Patrick The Starfish
ALIEN HUNTING!!
ALIEN HUNTING!!!!
I'll have to wait 7 more years then...
astronaut: **lands on planet**
also astronaut: omg is thAT AN ALIEN
alien: well you’re not from here so your the alien...
They're both aliens.
I think where there will be water there will be life
I think everyone atleast once in life seen something crazy in the sky.are they finally saying there now searching for life on other planets?
Aliens are soooo far away that we would never find them
These moons or I see on the surface yet being stretch by Saturn and Jupiter create Room temperature oceans underneath the Ice it would be more strange if there was no life in these oceans
ayy lmao
ayy lmao ayyliens confirmed
@@crimsoncorsair9250 😂😂😂😂
Ik I'm 3 years late but that was funny
Matter of time.
1:54
Actually.There is water underground the mars surface? Right? Or am i wrong?
VinyZiks: Right.
a weird thought... let's bring mars to us.
What if... just what if we are actually from Mars?
We could have originated from this planet, maybe we completely annihilated it through war or perhaps it was a tragic solar flare incident, something that decimated the surface
dont understand why he said "if the answer is positive then life is everywhere"
Think of this life only continues for as long as the planet is positioned in the perfect place. So the odds of life existing in our timezone now doesn't mean life exists elsewhere in our timezone, civilisation only last for milliseconds.
Ingredients for life is the Triforce.
Legend of Zelda fan I saw what you did there