Harvard scientist Avi Loeb presents chilling theories that interstellar object 3I/ATLAS is alien technology, citing anomalies ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

An international team of researchers pointed the largest single-dish radio telescope in the world at 3I/ATLAS.

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

A new computational model suggests that Uranus' and Neptune's cores may be less icy than their "ice giant" nickname suggests.

Harvard's Avi Loeb argues 3I/ATLAS shows signs of alien technology, from its 0.2% probability flight path to bizarre metal ...

Until now, scientists believed that Mars’ skylights – pits in the surface of mars – were formed by volcanic activity. But ...

Imagine peeling back miles of frozen white and revealing valleys, rivers, and mountains that haven't seen sunlight in tens of ...

The most important aspect of this is that, with a possible atmosphere and liquid water, this planet lies within the habitable ...

Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

A new study referencing a past NASA Cassini observation found the presence of 'slushy tunnels' in Saturn's largest moon Titan ...

The continent’s ice is melting and raising sea levels worldwide. Our journalists will be sending regular dispatches as they ...