Ancient sea level changes led to the preservation of some of the Earth's earliest complex life forms, according to new ...

At least, that's what two astronomers told Congress this week, as they appealed for continued funding to research life beyond Earth. According to ABC News, Dan Werthimer, director of the SETI [search ...

Computer simulations suggest comets carrying a key precursor to many of life's building blocks would have rarely—if ...

If life exists elsewhere, it might not be on worlds like Earth. Here are some of the more peculiar places scientists are looking.

A planet that sits comfortably in the habitable zone is ultimately still at the mercy of its star. Stars emit more than just ...

Could ancient alien technology be hiding on the Moon? Scientists propose searching lunar dust for microscopic traces of ...

Where are all the aliens? We've yet to find life outside of that on Earth, but that doesn't mean scientists aren't looking. In fact, the search for extraterrestrial intelligence is going strong, and ...

Best known for dissolving bodies in bathtubs, sulfuric acid has the potential to be the elixir of life on other worlds.

University of Washington researchers have published a 5-billion-year computational simulation of Earth without life, ...

The microorganism grew despite being stuck in oxygen-free, carbon-rich, low-pressure, and extremely salty environments.

SETI researchers have applied game theory to determine when extraterrestrial civilizations might try to send a signal to ...