Why the search for extraterrestrial life focuses on microbes, not little green men
In short: Astrophysicist Sarah Rugheimer explores how studying the gases emitted by single-celled organisms could help us identify signs of life across the cosmos.
Rather than searching for complex, humanoid aliens, Rugheimer focuses on extraterrestrial microbes. By analyzing the specific gases these single-celled organisms release, scientists may find detectable chemical signatures throughout the universe.
The search involves overcoming two significant hurdles to confirm life on other worlds and considering the profound implications that discovering alien life would have for humanity.
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Sources
- Source: TED — Sarah Rugheimer: The search for microscopic aliens | TED Fellows · YouTube (embedded player only)
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