There are billions of planets in the Universe that, theoretically, can support life. But so far, we haven't discovered any ...

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

Explore the stunning and mysterious realities of planets beyond our own. This video delves into fascinating celestial bodies, ...

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

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

"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

Pluribus imagines Kepler-22b as an ocean world that sends a gift to humanity through radio waves. In real life, no such ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

While the last few years have been a bumper success for sci-fi – both in movie and show formats – a large portion of the most ...

The True Story of an Alien Craze that Captured Turn of the Century America," David Baron looked into one source of that ...

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

A Carnegie-led team of astronomers detected the strongest evidence yet of an atmosphere around a rocky planet beyond our ...