If and when SETI discovers alien life, a revised Declaration of Principles guarantees once the discovery has been verified, ...

For decades, humanity has searched the universe for signs of alien life — but some scientists warn that finding it may come ...

The group leading the charge in the search for extraterrestrial life has given the all clear: An interstellar comet looks to ...

The trick isn't to just search for biosignatures, but rather to look at how they are organized — and the Europa Clipper has an instrument for this. When you purchase through links on our site, we may ...

The US has recovered four distinct species of extraterrestrial life from crashed UFOs, a former CIA-funded government researcher sensationally claimed this week.

A faint blip on a telescope readout can set off a wave of excitement. Maybe it is a molecule tied to life. Maybe it is drifting through a distant nebula where stars are forming. Or maybe it is hanging ...

This could be why we still haven’t found alien life - Traces left behind by organisms on alien worlds may be too subtle to detect ...

US President Trump ordered the release in February amid renewed public interest; critics claim distraction.