A recently discovered "super Earth" located around 25 light-years from our planet is not as massive as previously thought, ...

Once it was clear that the finding was most likely real, the team took a closer look at the chemistry of the material nearest ...

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

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

A Harvard University cosmologist who has suggested alien life forms could be sailing into the solar system disguised as meteors is leading the Trump administration’s secretive new scientific advisory ...

The NASA Opportunity Rover has once again sparked fascination after one of its older images resurfaced online, reigniting speculation about unusual objects scattered across the surface of Mars. While ...

A rather outlandish claim that an alien gun was spotted in a photo taken on Mars 12 years ago has drawn attention.

NASA’s Perseverance rover has uncovered the most extensive evidence yet of complex organic molecules on Mars, detecting ...

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

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

Today's Mars rovers typically drive at about 500 to 1,000 feet per hour — roughly the length of one to three football fields ...

The Perseverance rover on Mars inspects a rock coined Cheyava Falls with the SHERLOC instrument on its robotic arm. Credit: NASA / JPL-Caltech NASA’s Perseverance rover has reported the most robust ...