Early Mars seems to have had a protective atmosphere and liquid water in the form of oceans, rivers, and lakes. It may also ...

Radio signals have been travelling through space since 1906, forming Earth’s radio bubble. Now 119 light years wide, it covers about 75 star systems, the signals fading into noise ...

"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

Artificial intelligence is starting to sit in for human subjects in classic economics games, from financial markets to public ...

Here are 10 major findings about human ancestors and our close ancient relatives that scientists announced in 2025. A handful ...

A quiet confession from Zosia exposes how the Others crossed Carol’s boundaries, turning a fragile romance into a catalyst ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Why have disclosures from government officials about non-human intelligence been met with silence? Psychology explains the ...

The truth is out there — and late President George H.W. Bush apparently knew it — telling a federal official that an alien made contact with humans at a secretive New Mexico air base in 1964, ...