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

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

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

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

Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...

Once small enough, these technograins might gain a trip out of its host solar system by a solar wind that overcomes the ...

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

The Pentagon's latest declassified UAP files, including eyewitness videos and historical documents, have reignited interest ...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

Newly declassified Pentagon UFO files have reignited debate over a possible alien presence on the Moon after a previously secret NASA Apollo 16 briefing surfaced online. The recording references a ...

The Donald Trump administration has released numerous files about reported UFO sightings as well as bizarre claims and reports about the surface of the Moon ...

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