When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

For decades, the search for extraterrestrial intelligence has been defined more by silence than discovery, but that balance may be starting to shift. As new telescopes, algorithms, and theoretical ...

There are billions of potentially habitable planets out there, so why haven’t we seen signs of life beyond the solar system? Perhaps because the aliens have all destroyed themselves. A new analysis of ...