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A Cosmic Creation Comedy
Not His First Space Rodeo
Are Humans Just Aliens? Panspermia Explained
Key Facts In This Video
A small percentage of meteorites that have impacted Earth came from Mars. 03:15
Necropanspermia is the idea that organisms needn't be alive after traveling through space and arriving on Earth for their genetic material to influence the evolution of life. 05:34
NASA has to meticulously examine its equipment so that it doesn't inadvertently carry microbes into space. 06:55
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