Did a flying saucer just land at NASA? It sure looks like it.

In the 21st century, the theories regarding the existence of aliens refuse to dial down. Now, the recently resurfaced NASA photo of Martian planet has gone viral on various social media ...

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

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to ...

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

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

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

NASA's Perseverance rover has uncovered one of the most intriguing clues yet in humanity's search for life beyond Earth. While exploring an ancient river valley on Mars, the rover detected complex ...

A comet screaming in from another star system carried alien ice ratios never seen before. What scientists found inside its spinning nucleus is reshaping how we picture worlds beyond our sun.

Avi Loeb vows to brief public and create website to share findings of team tasked with investigating origins of mysterious ...