Astrobiology, the search for life beyond Earth, has moved from the fringes to the forefront of science in recent years. Last month, NASA announced with great fanfare that Europa, a watery moon of ...
Humans love to put labels on pretty much everything — even stuff we know nothing about, like undiscovered alien civilizations. Over 50 years ago, a Soviet astrophysicist invented a power ranking for ...
Researchers looking for signals from technologically advanced aliens pick up countless strange pings — but so far, nothing has convinced them that a message really came from aliens. But that doesn't ...
Researchers looking for signals from technologically advanced aliens pick up countless strange pings—but so far, nothing has convinced them that a message really came from aliens. But that doesn’t ...
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