SETI

A European Mars orbiter beamed a coded message to Earth today (May 24), kicking off a weeks-long project designed to help us prep for a real signal from E.T.

A new project called 'A Sign in Space' will give scientists and laypeople around the world practice at decoding a message from intelligent aliens.

Intelligent aliens looking for life in the universe might be able to find Earth using our radio signals, a new SETI study suggests.

There's no evidence that the three mysterious objects shot down recently by U.S. fighter jets came from anywhere other than Earth, White House officials said.

Humans have five new leads in the search to find life beyond our solar system.

A new search for alien signals focuses on planetary transits, when exoplanets pass right in front of their suns.

Scientists have proposed another use for the world's largest gravitational wave observatory: scanning for the ripples in space-time left in the wake of gargantuan alien spaceships.

Two SETI telescopes came together for an evening in May to scan a zone where a purported alien signal emerged in 1977. They saw no sign of life, but will likely return for more searches.

We're unprepared for when E.T. reaches out to us. A team of experts is determined to change that.