Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

A set of protocols telling scientists what to do – and what not to do – if they ever detect evidence of intelligent life ...

From "Independence Day" to "Invasion of the Body Snatchers", movies and TV shows are packed with advice for anyone aspiring ...

Astronomers have recently started looking for black holes bigger than galaxies. Brian Lacki explains how these “stupendously ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

Millions of fans are on U.S. soil for the first time. Wait till they see the registers, the restrooms and the tip screens.

Researchers propose turning a future NASA moon base into a quarantine station that would screen space samples before they ever reach Earth.

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

The blockbuster release of Pentagon UFO files under President Donald Trump's push for transparency has triggered widespread panic that ETs are already among us and possess technology far superior to ...

Today:Early fog in the far southwest clears quickly. Most areas stay dry with sunshine and variable cloud, though northern and northeastern regions may see isolated showers. Light winds overall, ...