Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.
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Red sky paradox: either we’re impossible, or aliens should be everywhere
Most stars in the cosmos are small, cool red dwarfs, yet the only intelligent life we know orbits a relatively rare yellow dwarf under a blue sky. That mismatch is at the heart of the “red sky paradox ...
What views of the night sky would we have if we had evolved on the Jupiter moon Europa, or one of the TRAPPIST-1 planets? When you purchase through links on our site, we may earn an affiliate ...
The Search for Extraterrestrial Intelligence (SETI) focuses on finding technosignatures—potential signs of alien technology. If we look carefully, we might have a chance at detecting their ...
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