From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

For decades, scientists have searched the skies for signs of alien civilizations. This breakdown looks at why that approach ...

A light moment unfolds during Russian President Vladimir Putin’s annual news conference when a journalist asks about a ...

Aliens might be transmitting communications signals to each other across exoplanets, some astronomers think. Since these signals are likely sent as narrowband radio waves, we may now have a way to ...

In the many decades of NASA exploration, there has only been one detection that got on that scale. It was collected by the ...

President Vladimir Putin's epic annual press conference on Friday was punctuated by bizarre moments and occasional barbs from ...

That’s the question at the center of Pop Mech ’s new story, “ Aliens Probably Exist—But They’re Staying Silent For a Reason, ...

President Vladimir Putin's epic annual press conference on Friday was punctuated by bizarre moments and occasional barbs from ...

The majority of Americans believe there there is extraterrestrial life. Aliens might marvel at earth's natural beauty but wonder why we are not protecting it.

A Harvard University astrophysicist has sparked a furious debate by warning he cannot rule out that extraterrestrials are ...

Follow live updates from NBC News as Russian President Vladimir Putin speaks at his annual year-end news conference on ...

A former Israeli space chief's claims about an alien galactic federation have resurfaced, sparking a viral debate and renewed searches about possible extraterrestrial contact.