Alien civilizations may have left traces. We just may not have been looking in the right place.

From insects to the moon, people have mistaken very Earthly phenomena for UFOs many times.

A new line of research proposes that the first clear signs of extraterrestrial intelligence may not come from distant stars, ...

NASA's vision of building a moon base has begun to take shape. Here's what to know ahead of the latest update coming today ...

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

The Pentagon's latest declassified UAP files, including eyewitness videos and historical documents, have reignited interest ...

Researchers propose turning a future NASA moon base into a quarantine station that would screen space samples before they ever reach Earth.

The contracts ​for Firefly and Intuitive ‌Machines ⁠each involve sending another one of their landers to ​the moon.

On a clear night, the sky may seem peaceful and empty. Yet beyond the stars visible to our eyes lies a universe so vast that it is difficult to imagine. Our gal ...

NASA's Jared Isaacman will lead a news conference today (June 30) to provide the latest update on the ambitious plan to build ...

Scientists say moons around rogue planets wandering through the galaxy could remain warm enough for life thanks to tidal heating and hydrogen-rich atmospheres. These dark, starless worlds may have had ...

The recent discovery of an enigmatic substance on the surfaces of both Titan, Saturn’s largest moon, and Pluto, our solar ...