An interstellar comet changed its chemistry after passing the Sun, revealing hidden layers and a surprising mix of carbon ...

The Hubble Space Telescope has made multiple observations of exoplanet WASP-121 b, also known as Tylos. The extreme ...

A new study suggests alien life may be easier to detect through clusters of similar planets rather than single biosignatures.

A research team has developed a new approach to detecting life beyond Earth that does not rely on identifying specific ...

A new study proposes detecting life in space by spotting patterns across many planets instead of focusing on one at a time.

His job was to uncover secrets from the unknown. But his curiosity opened doors that the government preferred to keep closed.

Comet 41P/Tuttle-Giacobini-Kresak has begun acting a little unusually, but there are likely natural explanations before we go ...

For a long time, it was thought that this [technique] required telescopes in space,” says John Mather, the Nobel ...

Designed to hunt for new alien worlds, NASA's Transiting Exoplanet Survey Satellite (TESS) has serendipitously observed the ...

"While it's hard to say what makes something more likely to have life, identifying where to look is the first key step." When you purchase through links on our site, we may earn an affiliate ...

Cue the curiosity surrounding extraterrestrial life. The U.S. Department of Homeland Security has registered two new federal domains, including Alien.gov and Aliens.gov, though the websites aren't ...

Two newly registered federal website domains – Alien.gov and Aliens.gov – are drawing attention after records showed they were created this week by a U.S. government agency, fueling speculation as ...