A Purple Planet May Mean Alien Life
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- Опубликовано: 24 авг 2024
- With billions of stars in our galaxy alone, many with their own earth-like planets, how are we to know which ones might be habitable? Well, new research thinks we might just have the clue, and it all has to do with purple bacteria.
Read More:
NASA Kepler Results Usher in a New Era of Astronomy
www.nasa.gov/co...
"Scientists from around the world are gathered this week at NASA's Ames Research Center in Moffett Field, Calif., for the second Kepler Science Conference, where they will discuss the latest findings resulting from the analysis of Kepler Space Telescope data."
Prevalence of Earth-size planets orbiting Sun-like stars
www.pnas.org/co...
"A major question is whether planets suitable for biochemistry are common or rare in the universe."
Astronomers answer key question: How common are habitable planets?
newscenter.berk...
"NASA's Kepler space telescope, now crippled and its four-year mission at an end, nevertheless provided enough data to answer its main research question: How many of the 200 billion stars in our galaxy have potentially habitable planets?"
Alien life may flourish on purple planets
www.newscientis...|NSNS|2012-GLOBAL|online-news#.UoVBy2Sap15
"Find a purple planet, and you may have spotted alien life. Some of the first Earthlings were purple bacteria that ruled the planet about 3 billion years ago. If any Earth-like exoplanets host similar microbes, their distinctive hue will be visible from space."
Characterizing the purple Earth: Modelling the globally-integrated spectral variability of the Archean Earth
arxiv.org/abs/1...
"The ongoing searches for exoplanetary systems have revealed a wealth of planets with diverse physical properties. Planets even smaller than the Earth have already been detected, and the efforts of future missions are placed on the discovery, and perhaps characterization, of small rocky exoplanets within the habitable zone of their stars."
Purple Bacteria on Earth Could Survive Alien Light
www.miami.edu/i...
"Purple bacteria contain pigments that allow them to use sunlight as their source of energy, hence their color. Small as they are, these microbes can teach us a lot about life on Earth, because they have been around longer than most other organisms on the planet."
Extreme alien light allows survival of terrestrial bacteria
www.nature.com/...
"Photosynthetic organisms provide a crucial coupling between the Sun's energy and metabolic processes supporting life on Earth."
Kepler - Ames Research Center
kepler.nasa.gov/
Watch More:
Do Aliens Exist?:
• Do Aliens Really Exist?
TestTube Wild Card:
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3 Space Agencies You Don't Know:
• Top 3 Space Agencies Y...
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What if we find alien life, but it turns out they've already known about humans for years, but never cared to bother with us. How sad would that be finding out humans are the losers of the universe that other life forms make fun of?
I'm happy they weren't like the big kids at recess like "yo kid you got a cool looking ball give it to me. oh yeah I'm hungry too give your lunch money"
cause then we would be the Indians in Christopher Columbus' story space version. and we all saw how that turned out for the Indians in the first bit, I don't want to play an assisting role in the sequel
eugene bizzell god your so sheltered
jason cheng I feel like you dont know the meaning of that phrase
they'll look at our dumb people taking selfies while they'll just be hanging out not fearing of dying because they have better technology
***** Obscure reference is obscure.
Just because its life doesnt mean it needs our requirements... Things on EARTH need to be habitable... For things on earth! But if there are extra-terrestrials, what proof do we have that THEY need what WE need?
***** Dont call me a fucking moron, I was stating that just because it is an extra-terrestrial doesnt mean they need what we need! Do we have proof that other planets have the same exact biology? I dont think so, Im not in fucking Quantum Sciences of Biological Compounds like you, Im only 13 so I dont know all that stuff.
well we search for what we know. so *habitable planets* or so they call it. must require things WE need to survive. because we are not looking for planets to live on that cannot support our life form.
we need earth conditions. and thay is what they look for. maybe these planets do have same conditions as earth. slightly more or less. idk. but yeah we dont search for habitable planets that do not support earth life. that would be retarded otherwise....
Ramon Den Hoed I wasnt talking about what is and isnt habitable, I'm trying to make a point that maybe non-carbon based life forms or any extraterrestrial would have the same requirements as us. We haven't been out of our own solar system to prove that biology is the same on every planet.
***** As I said I'M ONLY 13
zoidBergh still doesnt matter if its different man. We're searching for earth like planets. Not anything else. If life is different there then here sure due to gravitional pull and other weather conditions.
purple is my favorite colour, i must be an alien...Kappa
Arthunik you're just dirty. Full of bacteria.
Arthunik ayee
100 % will have life and it will all consist of internet memes.
So are you saying our planet is purple?
ayylmao
purple is just a different shade of blue, which is the color of our planet
ALSO he's not saying Earth is purple, he's saying Earth WAS purple
Ariq, what?
=_= What?
Since the universe could be infinite with muliti universes and megaverses, perhaps there is an infinite possible places with life and we just don't know. Also, how do we know life on a different planet can't grow without conditions found on Earth. Just because we need water and live within a certain temperature range, doesn't mean that Alien life follows those rules as well.
That is why we say "Life as we know it" but life outside of Earth may not necessarily be "as we know it."
Woah
We wouldn't expect it to but it helps us narrow are search in knowing where the best places to look for life first. We know life here takes water and with that being a liquid, we need to search for a planet with some kind of liquid ocean. Jupiter's moon titan is covered in liquid methane and even though its 200 below zero we know it would be a good place to look just because it has some form of a stable liquid ocean.
But, still - you don't know there is another universe.
Anthony, in the thumbnail you don't have a beard
Y U NO HAVE BEARD IN PICTURE? haha
7 years and only 1 like ill make it 2
Friendly tip: If you see a purple planet, don't land on it.
It's inhabited by the Covenant and they go batshit insane when unexpected visitors appear.
Lawrence Mundy Uh.... Mars....
or it could be inhabited by grunts that breathe methane, aka fart and they will bring the hammer down with their suicidal tendencies.
Nah they'll just recruit us, fill our skies with shipyards
Are we talking about the game halo?
yeeeep
I don't think we consider that not all life is exactly the same way, what we consider habitable might not be habitable to an alien life form that developed on a planet with an atmosphere rich in methane and temperatures of -300 Celsius.
DigbyTheGoat u ain't lyin
Ummm... Sorry to interrupt but -273 Celcius is the coldest it can get.
DigbyTheGoat The reason we look for life on planets like our own, is because we only know of life existing in those conditions, and we have to start looking somewhere
-300c
Wow did know you were here
Did anyone else immediately think 'EVE!" when they saw the purple planet?
ksp should have non kerbin life (on eve since it's purple?)
Ethan Geisler There is non-Kerbin life: All the Kerbals you ditch on other planets!
Joe Winter HEY SQUAD PEOPLEZ!! Make aliens on eve
Joe Winter I only just made it into orbit and I have lost Jebediah to space :( every time I look to the star I think of Jebediah and the risks he took for our great space program RIP
Wallee?
Imagine if we found life like humans and they were trying to find if there was life other than their own, that would be cool
If they were nice beings, I wouldn't say no. hhh
MissPlaying so true
did you know if an alien were to look at earth from a telescope, they would see us as DINOSAURS!!!
yeah ikr haha would so weird if they came here someday to find Dinosaurs. and instead find a whole world full of technology humans and a bunch of dino bones hahahaha
+Ramon Den Hoed Yep yep..
Ramon Den Hoed hahaha!! i know lol, they'd probably get pissed off and destroy us :'(
If they are 65+ million light years away.
The closest star is 4 light years away. So it would've saw 2011.
Of course not all the stars are this close but then again not every alien being is going to see dinosaurs.
+MF ASJC Finally, my dream of becoming a dinosaur comes true! I just have to be observed by aliens, then WHAMMO! T-Rexin' this shit up, bish!
For the first time in my entire life, I feel a sense of camaraderie, joy and growing-faith in humanity; as I peer below at the comment section. Literally, every comment indicating signs of knowledge, education and common sense.
No debates on god, life, religion, conspiracies or any other bull shit. Just plain old intellectual discussions, finally.
I agree, that it's not restoring enormous faith in humanity, but at least it's not decreasing faith. I mean had I seen comments about god or "evolution is wrong" or some other nonsense, it would have slightly dampened my spirits. This at least reinforces my optimism about the future and our hopes in contacting extraterrestrials.
I would like to maintain the delusion, that my existence in this era of time is consequential somehow. I could have easily have been born in different time, but why now, may be I will witness something amazing during my lifetime. Already we are on the precipitous of human intellect, innovation and technological advancements in all fields. We could be on the verge of discovery of something extraordinary... only time will tell.
(Or i could just stop wishful thinking and playing Halo, and continue my mundane existence; I prefer the former of the two)
Holy shit! I wish I can meet one of those aliens :3.
I think they were bacteriums and maybe animals but no alliens
Me Too
its been SCIENTIFICALLY estimated that of the 300 billion stars in our galaxy, there may be 10,000 with life. This was in 2010 so, a little outdated... I'm just gonna.... kind... back away slooooowly now...
Purple is maybe the best bet to find life actually. Many proteins which are part of life processes (like melanin) reflect very well purple part of visible spectrum. Life it self somewhat tuned to reflect light from green to purple (not only primitive bacteria but all protein based lifeforms, essentially only kind of life we know). It is a good guess to expect that a planet covered with life forms will have a strong purple signal in its spectrum. Combine this with the position of that planet within that star system (Goldilocks zone) and there is a big chance that that purple signal is a proof for life on that planet.
Worth of note is also that purple color can occur also from other reactions and events but most of those require high temperatures to occur, much higher than those which support life and this is one additional point toward the proof for life.
Purple component in spectrum and Goldilocks position of the planet equals, with very high probability, life.
I am saying about 60 percent of that supporting life, and then 5 percent of that 60 percent supporting intelligent life.
I would hope so
But you never know
+Jordan Beavers The chances are very slim of aliens actually evolving the same way we did to achieve intelligents.
+Gatsu Is it really? intelligence has proven to be the most useful adaptation and the adaptation that almost guarantees success amount said smart species.
bowser jr Yeah but they have to get to that point of being smart and they have to go through similar conditions in which we were to develop this complex system in the brain to start adapting. The chances are very very slim of this happening somewhere else but the universe us most likely infinite so its possible.
SUPER SMART ORIGINAL COMMENT: We haven't even fount intelligent life on earth yet.
It isn't funny. Stop it.
PDDDFFCHHHH, Dooty! XD
brostepisthebest just because they are aliens doesnt mean they are intelligent :)
maybe because we can't find any life on other planets possibly because Earth is the first planet to have advance life? then again, i think thats stupid question.
Maybe Earth life was the first to exist, but you make it sound like humans were the first life to exist. That's obviously not true. There was tons of life on Earth before humanity as we know, and I think by now, other life will have formed somewhere else.
***** oh ok.. let thanks for correcting.. me
***** How could aliens know anything about us? There's a mathematical limit to the angular resolution of a visible light telescope because of diffraction (d*sin(theta)=n*lambda) that means that even if an alien somewhere is observing our system, they wouldn't even be able to resolve the sun as a disk, much less any of our planets. The only evidence of life on Earth would be the characteristic spectrum of our heavily oxygenated atmosphere.
Oi, remember that all these planets are far away, so we are looking at the past of those planets. There could be life right now, but unless we can have pictures that will be able to instantly show us the planet's current stats. So there could be life right now and we will not know. So it's impossible to tell unless we get that kind of technology.
+Wise Sage Doge Exactly, I was going to write that.
Current stats? This isn't a video game.
+Wise Sage Doge yes true we are looking into the past however, all of the planet they are looking at are less than 40 light years. so its only a few years in the past.
+Wise Sage Doge yes true we are looking into the past however, all of the planet they are looking at are less than 40 light years. so its only a few years in the past.
Daniel, stats is a short version of the word statistics. That could mean mass, diameter, volume, color, or really anything.
I love watching all the people in the comments try to look smart by fabricating random numbers for the possibility of alien life
+fuhrer l how am I doing the same thing?
Well if you think about this: the Milky Way alone containes 200 billion stars, 1/5 of them may have planets with some support of life. That's still 40 billion stars. But wait, there are also billions of galaxies, each containing millions to billions of stars, maybe with a higher or lower chance of stars with Exo planets. Can you imagine the possibilities?
Exactly. I think it's 40% and there are planets that already know about us.
Tyler Johnson You see the only problem about this is because life travels so fast (or I guess so slow in this case) The light that would reach them from their planet would be million, or even billions of years old depending on how far away they are from us. So they would see either extremely early humans or just plainly dinosaurs. Nothing they would probably be that interested in if they were looking for intelligent life on other planets.
+Tyler Johnson While it is more than likely that there is intelligent life in our galaxy aside from us, I think it extremely unlikely that such intelligent life would either come across us by chance, or even know of us or even have discovered our planet or even cataloged our star for that matter. We are so small in our galaxy that it is very unlikely that we'd ever catch the attention of anyone else; ever. But that's just chance. It possible in a world of chance for that to happen, but the odds are stacked against discovery.
+Tim van der Kooij 400 billions*
thats... why i always slap my head against the wall if they ask. are aliens real?? >______>
ofcourse they exist. somewhere..... we just didnt found it yet. or will never find it in our lifetime
Did anyone else immediately think of 'Eve' in Kerbal Space Program? no...?
I did!
yep
Wait... we base the "habitable zone" on our own ability to live there... What if other forms of life could live on the planets we can't? Science hurts my brain...
thats a question I asked my self a long time ago.
Or a planet with a different atmosphere that inhabits certain beings that gain off of our atmosphere....like krypton....
Cloudy Daze better yet, planets with different atmospheres that WE can gain off of. Ticket please.
Because doing research costs time and money. Scientists aren't going to waste either looking for some "theoretical" form of life that may or may not exist anywhere. Chemistry is universal, and we are aware of no set of chemical reactions capable of the complexity necessary to support life beyond the organic (carbon-based). That's not to say it's not possible, but even if it is we have no expectation of what observable effects some other form life may or may not produce in the atmosphere of planets. What we do know is that there is a form of life (Archaean-type single celled organisms) that does produce observable changes in the chemical nature of the planetary atmospheres. That's why we are looking for that. Scientists are, in general, not stupid.
Jarathor Get off RUclips and back into your lab sir. Your smarts are going to waste here. You are above squandering around RUclips's comment section.
1%, because life requires the perfect combinations, and that still means around 200-800 million planets that support life.
there are two answers: either we are alone, or we are not. both are equaly terrifying.
thats a quote! dont take credit
How many planets would look like it was nuked by it's own inhabitants?
Billions of years ago, when microbial life first emerged on Earth, our planet would have appeared purple from space. Back during the Archean era, some three billion years ago, one of the more widespread forms of life were purple bacteria, photosynthetic microorganisms that inhabited both aquatic and terrestrial environments, our world could have been purple, if it were not for the green microorganisms to take over, and create the plants that we have today.
talks about purple planets; shows picture of the moon.
12.5%, don't want to be too optimistic but definitely a possibility. I'd also say 1.5% is intelligent.
EVE you have life! Go Jeb! Go find some life!
I just want them to find the closest thing to a Xenomorph.
Humans are so arrogant. The farthest we've physically been is the moon, yet people think they know the percentages of life in the universe. The truth is that no one knows, especially not those commenting on RUclips videos. Any truly intelligent person would say "I don't know", because that is the correct answer when it comes to this.
Finally someone with a functioning brain. People here are saying "facts" about ET life when we don't even know all the species on our own planet.
Utterable Drip Thanks. I get so tired of armchair scientists thinking they know everything. It's so damn annoying!
what gets me is how we base Theories (educated guesses) on Theories. Can we atleast prove a few of these before we base stuff off of it? Having theories like this is limits some people's imagination because they figure "oh sounds good", use it as a slippery slope to win arguments or ,just mistake it for fact.
+Trevon Cowen Gravity is still considered a theory. Does that mean we shouldn't base anything off of gravity? Should I jump off of a building because we haven't proven gravity beyond a theory?
Human are insane
Its Extremely Important to mention, that , Existence of life does not equal intelligent species, much less space faring ones.
For every species of mammals there are millions of species of fungi and bacteria. May be the universe is "Infected" by Life, but not, Intelligent life.
To be fair, that's why they aren't looking for complex life, but instead Archaean-type bacteria (read the paper linked in the description).
Just a disclaimer for people who think life is as it is dogs, cats marmots and orcas, they are intelligent lives, not like bacteria, or viruses. Though its arguable they are intelligent too .
everyone who's ever played the halo series has been telling people this for years! we need to accelerate super soldier development NOW!
It makes me wonder... are there civilizations somewhere out there right now wondering if we exist? Asking the same questions as us? Statistically speaking it is unreasonable to say there isn't. I hope I live to see the day we discover extra terrestrial life of any kind
Same here.. But i think it's something that will mostly happens in the next or second generation to be honest. Right now our rockets are vastly outdated and needs improvement, but it seems country leaders think it's better to sit on their asses n wait fearing that one of the others might go on war with them n invest a shitload of money into weapons that doesen't serve rather then invest on researches that COULD get us out of this planet which, is dying slowly because of us.
my money will be on >1%. even that gives us a truly ridiculous number of potential worlds to explore out there.
both of us were wrong... its roughly 5%! (of what we have so far observed)
with out a doubt there are other planets with life! earth is less then a grain of sand at the beach compared to the universe
I don't understand this statistic, we evolved being used to this temp (distance from the sun) why can't other organisms evolve being twice as close or ten time as far as we are to the sun.
I am going to lose my shit if the rocket carrying the James Webb explodes on the launchpad.
Hopefully one of these planets will turn into a civilized race, it may take millions of years, and hopefully they might find us, and see how our race failed
I dont hate humanity, just we fucked up to many times to fix it, world war 3 will truly be last of us
***** the movie because that is a truly a piece of shit
Adas Tenkie There will be more survivors after the third war. Mutated or not, Starved or not, dying or not.. there will be survivors the only question is.. will there be enough resources to rebuild.
Unless they fail the same way.
If there is actually as much potential for life as they think there is, then not only is there likely intelligent life, but intelligent life very well could have existed long before us. We only took just over 4 billion years to for, as biological beings. The universe has existed for over 13.
One day they're finally going to realize that planets wouldn't have to be Earth-like in order to have life. Life is so varied and can exist in such extremes even here on this planet there is absolutely no reason to think that the extreme environments on other planets can't also have life even though they're not Earth-like. One day they'll probably find life that isn't even on a planet at all, it could be just swimming around in what was always assumed to be a vacuum of death. There's probably forms of life that would find our planet or any planet like ours to be totally uninhabitable. There could be scientists near a distant star looking at our planet through a high powered radio telescope, who can't actually see us clearly but are assuming life couldn't exist here because we're too close to a star while they live comfortably on what we'd consider a frozen ball of radioactive poison.
It's a big universe, they're crazy for limiting their scope to focusing on planets that are Earth-like. We might have life on the outer planets of our own system that we can't see yet. They shouldn't be ruling anything out as potentially having life until they actually set foot on it and find nothing.
I've always thought about this. Why do planets have to be Earth-like for life... Why does other life need to conform to our temperature limits.. I don't need to go into any detail, because you just basically said it all. Amazing comment.
Alixander Burns
You are correct, but the biggest reason is that we have no idea what to look for if it is not carbon based life. What the hell would nitrogen based life look like? or florine based life? It is still life, but we wouldn't be able to confirm it from far away.
When we can go to these places, then we will know what the term "life" actually means, but until then, we have to stick to our guns and hunt down earth-like planets.
The purpose of finding Earth like planets, is to have a place to settle. The purpose of finding life on them, is to have a food source there.
***** Well said & great points
The reason only Earth-like planets are being focused on is because that is currently our only example of where life has arisen, and thus the only kind of life we know how to recognize and detect.
We would be looking at other planets, but the conditions for life as WE know it are found of Earth, so Earth-like planets make it easier to find life. It is almost certain that not all life will be like that, but we need a place to start our search.
Why the fuck do scientist think that aliens should have conditions like Earth.. It could be like they need helium to survive and and stone as diet. .. and temperature below 50 degree.. it could be anything right??
I think they pay the most attention to planets like ours solely because there's already proof that our mix of gases/gravity/temperature works and can support life, so it's a safer bet looking at places like ours first.
I never understand why there could only be life on planet that have circumstances alike earth. Why couldn't there be life on any other planets? I can't breath under water but that doesn't mean there's no life in the sea... I do get that it's probably the best guess we have though. I also don't understand why you'd only look at planets that just possibly have micro-organisms if that essentially means filtering out planets with more developed lifeforms.
i'd say 5%
its EVE from KSP!
Purple, because aliens don't wear hats.
100 percent life 90 percent intelligence. 100 percent leave me the fuck alone aliens.
one huge factor missed is, how long life on average lasts on a planet. What if the lifetime of life on a planet is so small compared to the lifetime of the planet that we are the only life in the Milky Way?
Anthony is honestly my favorite out of the 3
*three
tehFatMan epic win!
goes to a habitable planet and finds jar jar binks
destroy s planet with laser...
You'll be the Emperor and I'll be Darth Vader.
"Can I press the button to activate the laser?"
*Presses button multiple times*
Eve of Kerbal Space Program! Last I heard, there was no life there.
“James Webb, going up in 2018”
Me, almost in 2021: still waiting for it to go up 🙄
I would be so funny if we went to one of the life supporting planets where we thought nothing lived on and then other humans approached us when we landed😂😂
+Stephanie Neil It is evolutionarily impossible for other humans to exist.
+bowser jr how do you know, we are seeing light from the planets from millions to billions of years ago there can be aliens like us for all we know
El Moist Taco Because we formed based off the physical properties of the planet is it changed over the millions of years. It's physically impossible for the same results to be reproduced event by event.
+bowser jr not impossible just improbable.
Jeremy DiMattesa Impossible, even if the same things happened on some other planet it would still create different animals that work just as well.
i'd agree %10, however intelligent life (as in Human-like intelligence) would be more around %2
hmmm lets see i dont agree with that 2% cus of how many animals there are on earth theres only one intelligent enough to atleast make nuclear explosions
the percent for intelligent life, i agree with, but that 10% really only applies to life similar to life on earth. in star trek, their is a silicon based life form (essentially, a living rock). their might be silicon based life on other worlds, energy beings, and many, many more
TheGamingOfTheSky
I do belive that even if we are the smartes on earth we might might be the dumbest over the universe.
I don't even understand why are we still focusing our attention to purple planets, 4B years ago earth might be purple but today it is blue and greeen.
Science tend to make us humans super animals according to our life on earth, they tend to ignore scientific thinking and do things based on preconceptions.
***** but we might not be the dumbest for all you know we could the smartest
***** who says we have to be the dumbest in the universe all the time who knows we might be the smartest
Correction. 20% are in the habitable *range*, not 20% are habitable. There's a huge difference between the two. The former only cares about temperature and doesn't care about the composition of the planet. A gas giant in the habitable range still counts for this figure.
I still think life is quite rare, since there needs to be more factors than just being in the habitable zone and having water, at least for more advanced life (and I guess we're not really looking for that right now). I'd say anywhere from 0.1 to 1 percent of these planets may have life, but it may be like 20% for all I know!
Omg I can't wait until someone finds this out!! This is so interesting to me, I would love to be in like the extra terrestrial communications division of nasa if their is such a thing but I'm not smart enough for that haha. Anyone who disliked this video? They're probably just scared..lol
this is so cool
science is awesome
religion was just slowing the process and there are your dawnvotes from
Stanislav Viachev Yeah, religion say that there no life because of the "bible" (make no sense) and science still proving and advancing that there more in life than a simple Book of Fairy tales. If only we live in a world without religion, this will be a better world.
If we lived in a world with proper grammar, this would be a better world.
John Marston Good Job for telling me i'm wrong in my grammar. Here take a lollipop.
Why not launch it now? If, it's ready early.
Because government would rather fund wars than science
Cuz its too far
Considering the amount of planets that can support life, about 20 billion to 80 billion planets are suspected of life, that would mean that the number that will have life can range from 10% to 19%.
I love Space Mountain. When I was 8 years old, I made my father ride it with me 10 times in a row.
I think 3% of habitable planets would have life
Primitive video... How did it end up on my recommendation?
Farnsworth, the fuck are you doing here?
Luckiverse he had to use the time machine.
Alec+Productions
But... The time machine goes forward. Unless he saw the big bang again.
he did
ooo
Why do people think that alien life will be anything like life on Earth? There could be aliens living in our own solar system right now that are perfectly suited to the environment of Jupiter or Venus.
Hey, DNews! Could you do a video on genetic engineering, future of genetic engineering, etc., etc....because I'm pretty sure viewers would freak if there was some possible way to make unicorns, pegasi, and all that good stuff :) thankyaa
Human is an interesting animal. It uncovers the secrets of life and mind, space and time, looks up at the stars and asks itself, how can I make some unicorns?:D
imagine...
in a couple years we harness faster-than-light travel.
And then you can go to someplace in the galaxy you've always wanted to go, always wanted to see... urmagurd.
Don't hold your breath - FTL travel (assuming you get around the infinite required energy problem) has terrifying implications on causality.
math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/FTL.html
Traveling on the speed of light is still loooong away from us and highly likely not even in our life time. sorry
Traveling faster than the speed of light is impossible unless you make a worm hole or alike, which is not in our powers. Not in a couple of years.
Yep make those years century's.
Jarathor Two words Warp Drive NASA already at work on it with successful results. Only a proton so far but you need to crawl before you can walk.
100% of Goldilocks planets.
well, it's 100% that we are not alone here in the universe. Just think about it, it would be ridiculous if we were the only ones living out there
I swear, one of these planets better have lightsabers...
there's probably more than that...the type of life that the scientists are searching is the life as we know it...carbon based organisms or whatever...blah...blah...blah...but there's probably different types...something that we don't know yet...
intelligent lifeforms are probably starting in some exoplanets but we can't see it yet because of it's distance...
intelligent life would be cool but if their just a bit less advanced then us, at least 30-50 Earth years behind, then we have a problem. Think of what the European colonists did to the native Americans, it could all happen again with alien life if we travel to an alien planet. That's not to say we should stay on Earth until the end, we should explore alien worlds but remember our own history and try not to repeat it.
Keep in mind that traveling to another planet would take 10,000 years. Give or take a few millenia.
Jarathor the nearest star is 4.2 light years away man. That's the nearest, that probably has absolutely no life support lol. Even if we found a paradise of a planet we'd never get there alive unless we found a way to make the space ship so that it could support life for 10s of thousands, maybe hundreds of thousands or millions of years. We'd need food, water and everything for that time as well as reproduction and population control. We're not going anywhere outside of our solar system anytime soon. We can build external "planets" or halo's like in, well, Halo or Elysium. We could colonize Mars and that's about it. Even if people were able to reach light speed, the nearest other "earth" could still be hundreds of years away. I think before we reach the technology for any warp or light speed or wormholes, we'll be dead from a long gone livable planet that we destroyed. If you think about our population growth, politics, wars, economies and such, I don't think we'll last another 1000 years as great society. At some point, I could see it falling apart.
+1 dBFS Are... you replying to me or him? Because it sounds like you're agreeing with me.
Jarathor To him haha, I guess I clicked reply to the wrong person. All good.
We should launch a unmanned ship towards one of these planets with a cry for help as we slowly pollute our planet.
Correct me if I'm wrong, but since these planets are so far away and light only travels so fast , it's possible that when we look at these planets they don't even look like they do currently. Example. Let's say an alien is looking at earth through a telescope. He just sees a big ass ocean and a land chunk. What he's seeing is Pangea and not earth in its current condition.
IT'S EVE!
EVE. Still can't muster up enough delta-v to get off of it...
I believe around 10000 planets support life
Lmfao only 10K? There are 60 BILLION planets in the "habitable zone" alone in the Milky Way. You're telling me that 0.0000001666667% of those support life? Right. Not to mention that they don't need to contain life as WE know it, but any form?
Maybe Tentacled Duck was referring to the number of highly advanced civilizations capable of interstellar communication in the Milky Way at this moment. If he meant life in general though - yeah that's absurd.
MrGoat Maybe, but the way scientists, and, usually, people say "support life" is hinting towards the grand scheme of things in terms of life.
Nathan Swanson Yeah I totally agree. He was incorrect in how he stated what he was trying to say, regardless of what he was trying to say.
+Nathan Swanson That's actually a pretty optimistic percentage based on reasonable assumptions. The word "habitable" is very misleading, as it only means that it's in the right temperature range, not that it's habitable based on the many other factors that would be relevant to habitability. Plus, we don't know exactly how hard it is for life to form spontaneously under completely habitable conditions, but we know it's hard enough that we can't do it in a lab. Extreme rarity (odds of millions or billions to one) is at the very least a perfectly reasonable conclusion. Certainly to the extent that it shouldn't be rejected as "lmfao".
Actually, all temperates in which a liquid can form, and all sizes of planets that aren't too big to be a star, can support life.
I'm going to go with 25%. Bassed on that in our solar systems habitable zone we have 3 planets and one asteroid belt that could have become a planet with the right conditions. 25% of them have life (confirmed) on them.
Why do they have to wait for 2018 ? BTW This Video is from 2013
It has to be constructed
+El Moist Taco so it takes 5 years to do that!
the viper life HQ idk anymore :'(
'
+the viper life HQ Obviously because the probe has to be constructed. Making the parts of it aren't easy at all. The Kepler space telescope took over a decade to make. Compared to that, this one is coming very soon.
*****
Alright then
What happens when we find sentient life? If movie taught me anything, one of the two races is gonna die.
why?
Too good movies aren't real
What benefit would either of us get from war? Which ever one of us is more advanced could probably silently kill the other with bio weapons.
brostepisthebest The Victorious race could then take the resources, land and technology of the other. My first comment was a Joke BTW, I'm not sure why everyone is taking it so seriously.
10% is pretty accurate to say but I'm going with 19%
Ima go with 23.499381791%
ima go with3.14159265358979323846264338327950288419716939937510582097494459230781640628620899862803482534211706798214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196442881097566593344612847564823378678316527120190914564856692346034861045432664821339360726024914127372458700660631558817488152092096282925409171536436789259036001133053054882046652138414695194151160943305727036575959195309218611738193261179310511854807446237996274956735188575272489122793818301194912983367336244065664308602139494639522473719070217986094370277053921717629317675238467481846766940513200056812714526356082778577134275778960917363717872146844090122495343014654958537105079227968925892354201995611212902196086403441815981362977477130996051870721134999999837297804995105973173281609631859502445945534690830264252230825334468503526193118817101000313783875288658753320838142061717766914730359825349042875546873115956286388235378759375195778185778053217122680661300192787661119590921642019893809525720106548586327886593615338182796823030195203530185296899577362259941389124972177528347913151557485724245415069595082953311686172785588907509838175463746493931925506040092770167113900984882401285836160356370766010471018194295559619894676783744944825537977472684710404753464620804668425906949129331367702898915210475216205696602405803815019351125338243003558764024749647326391419927260426992279678235478163600934172164121992458631503028618297455570674983850549458858692699569092721079750930295532116534498720275596023648066549911988183479775356636980742654252786255181841757467289097777279380008164706001614524919217321721477235014144197356854816136115735255213347574184946843852332390739414333454776241686251898356948556209921922218427255025425688767179049460165346680498862723279178608578438382796797668145410095388378636095068006422512520511739298489608412848862694560424196528502221066118630674427862203919494504712371378696095636437191728746776465757396241389086583264599581339047802759009946576407895126946839835259570982582262052248940772671947826848260147699090264013639443745530506820349625245174939965143142980919065925093722169646151570985838741059788595977297549893016175392846813826868386894277415599185592524595395943104997252468084598727364469584865383673622262609912460805124388439045124413654976278079771569143599770012961608944169486855584840635342207222582848864815845602850601684273945226746767889525213852254995466672782398645659611635488623057745649803559363456817432411251507606947945109659609402522887971089314566913686722874894056010150330861792868092087476091782493858900971490967598526136554978189312978482168299894872265880485756401427047755513237964145152374623436454285844479526586782105114135473573952311342716610213596953623144295248493718711014576540359027993440374200731057853906219838744780847848968332144571386875194350643021845319104848100537061468067491927819119793995206141966342875444064374512371819217999839101591956181467514269123974894090718649423196156794520809514655022523160388193014209376213785595663893778708303906979207734672218256259966150142150306803844773454920260541466592520149744285073251866600213243408819071048633173464965145390579626856100550810665879699816357473638405257145910289706414011097120628043903975951567715770042033786993600723055876317635942187312514712053292819182618612586732157919841484882916447060957527069572209175671167229109816909152801735067127485832228718352093539657251210835791513698820914442100675103346711031412671113699086585163983150197016515116851714376576183515565088490998985998238734552833163550764791853589322618548963213293308985706420467525907091548141654985946163718027098199430992448895757128289059232332609729971208443357326548938239119325974636673058360414281388303203824903758985243744170291327656180937734440307074692112019130203303801976211011004492932151608424448596376698389522868478312355265821314495768572624334418930396864262434107732269780280731891544110104468232527162010526522721116603...
I wonder why do scientists look for earth-like planets and assume that life can only exsist in conditions similar to ours? Nobody thinks that life could also appear on planet with frozen methane lakes, with no oxygen but lots of greenhouse gases in atmosphere, or planets rich in radioactive elements? extraterrestial life may not be even basen on carbon and water, but maybe on sillicone? we truly have no idea what to look for and life may be even in plain sight.
they look for other planets like ours. 1 so when humans fuck this one up and can no longer live here, we will need somewhere else to go. or B. scientists are too curious for their own good. i think its the first one cause this planet is on its way out in the next few billions years. however long the sun lasts.
***** 15 billion years. and were probably going to be wiped out before then by an asteroid.
*****
ok, The Milky Way is about 150Mly in diameter. Humans are 4M years old so, even if we find a planet that could fit us, it could be so old that when we finally reach it it does not exists anymore.
20% based on chance.
RUclips is so god damn laggy now, WTF?
Especially on the new android app, keeps logging me out too :/
I thought I was the only one! When I'm watching videos, it's just so damn laggy!
Matthew B hhuknukhn
Matthew B u posted this 4 years ago....2018 is next yeaaarrr cant wait
Im from the future now praise me
I'm now drinking water from a purple cup.
10% seems optimistic, but fairly reasonable. Of those 10%, we can probably estimate 10 - 20% having undergone their equivalent of an oxygen catastrophe, changing the nature of life on that planet, of those, 1% with complex life.
lol its eve for KSP
If I took at guess only 0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000220000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000054000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100003500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000065700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000456324000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001%.
What a rough guess!
So homeopathic life?
0:40 - I apologize for geeking out (but what else are we all here for, but to geek out about science), it still deeply amuses me that Altair is a star as well as one of my favorite video game characters. I love games that throw in that much meaning into the character's names! ^_^
As someone who knows virtually nothing about space, I'm going to guess 42%
Because, you know... 42
DNews
Please put New Zealand on the spinning globe you have on that tv. It's really annoying me now
It's looks like an extremely pixelated picture that was generated by a computer... What do you expect? Florida is missing too and I practically can not determine if what is displayed north-east of China is Japan or Korea... That's how non real pictures work.
... Also I don't see anyone from the UK complaining.
Well they found room for Madagascar... I think they could fit a few equally prominent landmarks :)
20 billion earthlike planets. How many are in the goldilocks zone? How many have the right conditions for life such as tectonic plates and a large moon? Alot would end up like Mars. How many would be suitable for something else other than simple bacteria? Our galaxy has been around for ages, we might be in the wrong timeframe to see life, maybe 5000 years ago some alien species died out. Far too many dependencies and probabilities
but enough rolls of the dice for existence on this planet, so why couldn't the dice have been rolled more for others to exist?
I think you misunderstood something. He said that 20-80 million stars have Earth-like planets in the "Goldilocks" zone.
what shambler said. it was clearly stated those 20 billion planets are in the habitable (AKA goldilocks) zone.
Ethan Delparte That's better but still the aforementioned things would severely lower the chances of there being life. Bacteria is the most we will find for quite a long way out IMO.
If there are other life they are probably suffering the same conditions as we are, overpopulation, global heating, war and other problems we have. But if there was another race that once lived and died out then im sure they left a trace of them somewhere, a crashed ship, a outpost maybe even a beacon that we can tap in to if we get close enough. And even if there is no life in this galaxy there are thousands maybe even ten's of thousand's galaxy's out there and at least one have to have a intelligent race.
I'd say 0% of those planets would have intelligent life, because by the time intelligent life would be present on a planet, the purple of the bacteria shouldn't be as strongly present. Purple glows mean that the planet is in a developing state compared to us... I would assume.
Oh so this year huh ? So 2020 we find life ? And who knows there might be life advanced lifeforms , cause light takes time to reach us right .
... it really depends. id say that if theres three things you could say its possible for a planet to have life. 1, water, 2 oxygen and 3 the right temperature. at this point it would be epic to find a planet with even just microbial life on it, but i think it would be alot cooler to find complex life and intelligent life out there. most people think that if there is intelligent life that its way ahead of us technologically but i am inclined to think that we just might be the first civilization at least in our neck of the galaxy to develop this far. we could be the most advanced beings in existence in the whole universe. its a possibility. personally id think we are most likely in the middle some where. not at the bottom but not really close to the top. we still have alot of shit to sort out technologically, socially and globally. and no socially and globally arent the same thing. theres more to our global problems than just social differences.
Good thoughts. I've thought a lot about it too, and I have to disagree on one thing. I don't believe we are the most advanced beings in the universe. We can't travel further than to mars with our life and our tecnology, so why are aliens able to do it? they are not. They probably has a lot of the same materials as we have on earth, so there might be a possibility that some alien planets are close to being as far as us in tecnology, and also close to our intelligent in terms of life. I think there are planets that are similar to what earth will be in 500 years. Mabye they evolved faster or mabye their planet is older, but still I don't think it's easy for them to travel around in the universe, even if they are twice as intelligent as us.
We are only basing our search on life we find on Earth. We don't actually know what other paths other organisms may take for survival. They may for example not require oxygen but instead use hydrogen or helium to respire.
***** Thats exactly what I was thinking.
***** i didnt say that we where the most advanced, but its possible unless you know something we dont. we dont have any proof of actual aliens. sorry but the grainy blair witch project footage people shoot of "ufo,s" is something im not sold on. till they present themselves or we shoot some down i cant say with any certainty that more advanced aliens exist. its possible, its probable but we simply havent the evidence for them. just to get this out there, i dont think the pyramids or any other thing on the planet was built by aliens, inspired by aliens or in any way associated with them. also just in case, i dont believe we are aliens ourselves as some people have suggested. so thats for the " so why are aliens able to do it?" now like i said im betting in the universe we are about in the middle between 40 and 60 on a scale of 0-100. there are much older and much newer stars and therefore much newer and older planets with potentially much older and much newer life. now for space travel i think its the one thing we have immensely skimped on compared to other technologies we have invented and perfected since we first landed on the moon. people are reinventing computers every year yet people still think of space travel as being all buck rogersy in 200 years i think we can do better. with other technologies people thought and are still thinking "where can we have this technology in 20 years?" rockets are an idea thats old and needing replacing. not long after buck rogers we went to space with rockets, why after more than 40 years since star trek first came out have we not at least invented a craft that can go warp 1? fast space travel is what i wanna see. generational space travel is unacceptable to me. i think we can do better. we need to do better. after all our star will eventually expand to the point that it will kill all life on earth. we gotta be out in space by then colonized far away. also juice box has a point, life on another planet might have started and evolved differently. also we dont know that different life forms didnt initially start here too and that we(our basic life type of carbon based oxygen using/producing) simply won the initial fight for dominance on the planet. but i think that the oxygen producers came before us the oxygen users. it just makes sense. ... long ass comment, well i will stop now and let you read it and see what you think :)
***** Yes there is more intelligent life out there, but if they didnt find us before be found them then most likly we are more advanced, we just need to keep politics out of this or we will then be fucked up
To prove that the bible statements are wrong.
Wait, what? Purple isn't a wavelength of light, but just our perception of a mixture of red and blue.
Aquilen No. The wavelengths between red and blue are green. There are no pure wavelengths that are purple.
You could always read the paper in the description. Page 21 shows the spectrum that they are looking for. You are right that there is electromagnetic wavelength that corresponds to magenta or purple - kudos for learning that particular piece of trivia; fortunately, nobody in astronomy bothers to look for just one wavelength - they observe spectra from light from the parent star passing through the atmosphere of the planet or reflecting off of its surface and look for features (absorption and emission lines) that are indicative of the phenomenon they are trying to observe. The two features they are looking for are two pairs of absorption lines at roughly 0.5 and 0.8 um respectively. These wavelengths are, roughly, blue and red - hence, purple.
You have a typo in your response (there is no electromagnetic wavelength that corresponds to purple).
Not sure why you are dismissing my knowledge of color theory as *trivia*. I am aware of what they *could* have meant by *purple*, but why should I have to guess or read the source because they are being overly vague?
I actually found it quite annoying when nerds started pointing out how there is no such thing as magenta without actually knowing any color theory.
Explaining how a spectrum is perceived is completely useless. They aren't looking for purple planets, they are looking for a certain spectrum. There are many combinations of spectrum that could be perceived as purple, and most of them won't be what they are looking for.
On top of that spectrums can't even contain purple.
I just want to have a talk with the person who made the press release talking about purple planets because that how everybody was describing it and it is really misleading.
Even if our estimates are waaaaay off, say in the realm of a 10s of billions... That's still a HAAUUGE amount of exoplanets with a possibility of life. Amazing.
So, when the first life-sustainable purple planet is found, can we name it Planet Saints?
What we are talking about is based off of how much space we are considering meanwhile is actually infininte and no matter how many things you must factor in that make earth livable there is was has been and always will be intelligent somewhere
if they are like earth, (water,climate,atmosphere). but i don't think all life NEEDS to be made of the same mater we need. it would be with whatever is abundant on that planet. i will say 40%> of varying types of life exists on earth sized planets. smart life is harder to say.
that's my guess. this was fun :)
There is probably more *potentially* habitible planets if you broaden your definition of potentially. We speculate about the possibility of life on other seemingly uninhabitable planets in our solar system all the time.