Is alien life really out there? For decades, humanity has looked at the night sky and asked the same question. Now, according ...

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 ...

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

The recent discovery of an enigmatic substance on the surfaces of both Titan, Saturn’s largest moon, and Pluto, our solar ...

Hints and Solutions for Today’s Mini Crossword on Saturday, July 4, 2026.

From insects to the moon, people have mistaken very Earthly phenomena for UFOs many times.

Upon Cardinal Robert McElroy’s promotion to the post of archbishop of Washington, I authored an article titled “The Devil in D.C.” That should provide some indication of my thoughts on McElroy. The ...

In June 1947, Kenneth Arnold saw something strange in the sky. What he saw sparked a national UFO craze-but it was far from ...

A Stanford scientist's model suggests many small rocky planets can't sustain atmospheres, potentially explaining the scarcity ...