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PBS Space Time
Why Haven't We Found Alien Life?
Season 2
Episode 7
With millions of Earth like planets around sun like stars in our galaxy alone, why don't we see intelligent alien life? Or any other life for that matter? It gets especially weird when you factor in new scientific revelations that life on Earth occurred crazy fast! So if you want to help us theorize on the real reasons we haven't found alien life, you should watch today's episode of Space Time!
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19:02
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16:26
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18:33
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18:42
Gravitons, the particle of quantum gravity, may be impossible to detect.
25:02
2025 was the international year of quantum science, but today we examine its origins.
21:17
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21:31
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19:52
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23:22
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19:14
Life on mars could result in humanity’s destruction via Fermi Paradox.
19:01
How to build a particle collider the size of the solar system.
12:39
One of the most important reasons we go to space is to know our own planet better.