Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.
The Independent on MSN
More planets could be homes for aliens than we thought, scientists say
More planets could be homes for aliens than we thought, scientists say - Planets we thought were not inhabitable might ...
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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