Just before a SpaceX capsule docked with the International Space Station (ISS) so two astronauts who found themselves in space unexpectedly for nine months could prepare to return to Earth, an 'alien' ...

For a while, NASA's future looked to be on shaky ground, but this new proposal seems like a fresh vote of confidence.

New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder to detect.

Northrop Grumman's first "Cygnus XL" cargo ship will depart the International Space Station Thursday morning (March 12), and you can watch the action live.

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

U.S. lawmakers are moving to delay the International Space Station’s retirement, giving more time for commercial replacements to be built ...

A viral podcast moment last month reignited speculation about extraterrestrials and prompted President Donald Trump’s commitment to kickstarting the release of government files on flying saucers. But ...

Congress is pushing to extend the International Space Station's life by two years, to give commercial outposts more time to ...

SETI has spent decades listening for a sharp, well-defined radio signal that could indicate it was sent by distant intelligent life. Now researchers believe that space weather could distort and blur s ...

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

E.T. could be phoning home — but we’re not hearing the call. A new study published in The Astrophysical Journal argues that “space weather” could be distorting incoming transmissions from ...

NASA on Thursday walked back a prediction that an asteroid had a "small, but notable" chance of impacting Earth or the moon in 2032 based on newly analyzed data.