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

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

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

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.

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

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 ...

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

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

Once small enough, these technograins might gain a trip out of its host solar system by a solar wind that overcomes the star's gravity holding it back. These motes of dust are then free to roam the ...

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