An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

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

The new findings indicate that Mars once had enormous systems of magma like those found on Earth, the researcher say, despite ...

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

An instrument on the Perseverance rover has identified large, complex carbon compounds alongside unusual patterns on the ...

The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it.

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

Two scientists want NASA to build a quarantine lab for alien germs on the Moon, rather than on Earth. The pair, ...

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

EXCLUSIVE: ScreenRant presents a BTS clip of Tim Burton's style & CGI approach to Mars Attacks!, which is now setting a new ...

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar ...