Search for Life

Researchers claim flashes of light seen in sky surveys could have been UFOs drawn to Earth by nuclear tests, but more mundane explanations should be explored first.

As missions prepare to visit ocean worlds like Enceladus and Europa, new findings show scientists must first learn to distinguish between radiation-made organics and those born in a subsurface sea.

What about those previously studied plumes of methane and meteorites potentially stuffed with the fossils of Martian microbes?

A new study suggests that, without plate tectonics and the right balance of carbon dioxide and oxygen, advanced alien civilizations may be exceedingly rare.

Fresh analysis of Perseverance rover data reveals Jezero Crater experienced repeated episodes of water activity, strengthening the case for habitability and raising the stakes for Mars Sample Return.

"Although this doesn't rule out the possibility that Enceladus' ocean may be habitable, it does mean we need to be cautious in making that assumption just because of the composition of the plumes."

A U.S. House of Representatives task force will once again hold a hearing on Sept. 9 to hear from witnesses who claim the U.S. government is hiding evidence of UFOs.

Scientists studying the famous 'Wow! signal' think they've finally pinpointed a possible origin for the baffling radio transmission detected in 1977.

A new study finds that liquids other than water might be able to support life on worlds beyond Earth, potentially expanding the envelope of life throughout the cosmos.