Neil deGrasse Tyson: Where are the Aliens? - Documentary HD 720p
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Host astrophysicist Neil deGrasse Tyson explores such provocative questions as: would "ETs" resemble us or the creatures of science fiction? Are there "aliens" already amongst us on Planet Earth—brainy creatures whose intelligence is very different from our own? And are planets on which life can flourish rare or common in our universe?
Comments
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Fascinating how we still don't know exactly how we got here yet.
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doesn't a radio signal fade with distance?if so, isn't seti pointless?
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Really! Wow, someone is a little in the Dark, look Again!
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OHH I KNOW THIS GUY!!! It's from"Cosmos" that cool nerdy movie on Netflix. I like your style
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This episode is really old, I'm guess 1999. It's interesting to watch, now we know about over 1,000 planets.
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💝
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Stars are not suns. there are no aliens! its a cleaver agenda people
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@ 7:22 but wouldn't a mouse the size of an elephant have elephant sized 'thin' mouse legs? Isn't it more about scale? I mean if my car was 10 times bigger wouldn't tyres 10 times bigger fit just right? Scale is scale...
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Considering the percentage of life that literally has the cognitive dissonance and sentience, wouldn't it be most likely by these standards, alien life would simply be animalistic. They won't communicate because they aren't sentient enough to care
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Many of these people are ignoring convergent evolution. Its possible that intelligent aliens could look very similar to us.
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i know trump is mad as fuck because this black man is the most inteligent astrology and science
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what he said, is carbon is the jump off in the astriligy world lol
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i alway thought astroligigy was bullshit but these dude got serious skill and they been in colledge so i think some of it real. i didnt know they go the schhol to read charts also
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intent must come before content...a fact that science seems to skirt around.
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I'm not seeing this vid. This guy is a phony actor
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fuck you
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The idea of “alien life” seems reasonable. But what seems unreasonable, is believing ourselves to be the authorities on the definition of “alien life”? When we discuss “alien life”, we talk about life forms that fit our definitions. Why do we assume we would even recognize extraterrestrials if they travelled to Earth and bit us on the butt? Why would we and extraterrestrials and share a similar form/body and mechanisms of sense and perception, and further, why would extraterrestrial “intelligence” necessarily align even slightly with ours? Why do we assume they are even mobile? Why do we believe they would have any interest in communicating with us? Why do we assume they are listening? In another lecture, Tyson discussed the extreme difference between us and bonobos with whom we share 90 plus percent of our genetic structure, and that is a comparison of terrestrial beings…
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there are two possibilities in our universe, either we are alonr, or we are not. both are equally terrifying.
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I know many scientists that would laugh at Peter Wards suggestion that intelligent life (that builds using major technologies) can't happen in even hundred of millions of years once it started post simply animal stages. Well, Mr. Ward if life on other planets didn't have as many damn near extinction events (as modern humans have had) where we were down to only a handful of childbearing females, the various religious-elitist that kept scientific growth either at a stand still for centuries or kept it only for themselves sharing only with the top 5%. If they welcomed growth, if they insisted on sharing all knowledge with every member of their society, then you sir would be wrong. Out of the billions of potentially inhabitable planets just in the Milky Way, this very set of circumstances must have happened and continue to happen. I don't mind logic just not false self-centered logic, simply because it happened differently here makes no claim on how it happens elsewhere. Just being free from religions that required blind obedience to limited ideas would have accelerated human knowledge by a millennia or two. Imagine where we'd be today, with our technology 2000 years more advanced?
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If they evolve in a similar enough planet, experiencing similar events there is no reason to believe they won't be bipedal or have telescopic vision. They will have a mouth and the ability to detect scent aka a nose (of some design) opposable thumbs etc.
55m 2sLenght
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