Looking for molecular evidence of life on other worlds is tricky, but a test based on the reactivity of carbon compounds ...

"Extremophile" bacteria could survive asteroid impacts that are strong enough to launch them into space, suggesting that life could travel between planetary bodies.

An experiment mimicking conditions on the Saturn moon suggests that cell-like bubbles don’t form in methane lakes, puncturing hopes for alien life.

Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of ...

Scientists simulated an asteroid impact, and Deinococcus radiodurans’ cell membranes made it through. This suggests that life-forms flung into space by violent impacts may have colonized planets and ...

The possibility of alien life has moved from fiction to scientific inquiry, fueled by government interest in UAP reports. While scientists haven't confirmed alien spacecraft, the universe's vastness ...

Rep. Dan Crenshaw, R-Texas, joins ‘Fox News Live’ to discuss President Donald Trump’s decision to have the Pentagon release government files on alien life forms and UAPs. Trump v. Trump. Which ...

I can’t help but wonder what the origin was for naming Quasar Street, and the further down Galaxy Drive. I ...

Beyond that, in the decades to come, we might be able to see the colours of an exoplanet’s surface, and determine if plant life might be present there. And then we can search for changes in a planet’s ...

Researchers say elongated alien-like skulls found in ancient graves were shaped in infancy and carried different meanings across cultures.

If life ever existed on Mars, it might have looked like microfossils right here on Earth.