Titan, Saturn's largest moon, is home to vast lakes and seas - not of water, but of liquid methane and ethane. In this video, ...

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

A biologist specializing in invasive species has partnered with a former Pentagon strategist in pushing NASA to construct a ...

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper.

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

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

Is the rest of the cosmos a pristine environment awaiting the arrival of humanity’s “post-human” descendants? Or is advanced ...

Researchers have looked at how particular microbes from Earth would fare in conditions like those of Mars, the moon, and the ...

The Pentagon's latest declassified UAP files, including eyewitness videos and historical documents, have reignited interest ...

Something is absorbing light on the surfaces of Pluto and Saturn’s moon Titan, and figuring out what it is could be crucial ...

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

Space exploration was a major theme of a state House hearing on Tuesday, even as the budget deadline looms over lawmakers.