Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.
It makes sense, really.
Chip Chick on MSN
Aliens could be talking to one another like fireflies, with a series of flashing lights
In the search for extraterrestrial life, researchers have hinted at the idea that advanced alien civilizations may be ...
Alien life could exist on hot, rocky planets, sustained not by water but by a type of salty fluid, new research suggests. Reading time 3 minutes The search for alien life usually hinges on finding the ...
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