Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

When the U.S. was born, humanity was still seven years away from balloon-borne flight. Where might we be another 250 years from now, should the nation be fortunate enough to survive that long?

Future Artemis astronauts may be able to explore rocks blasted from deep inside the Moon by an ancient giant impact.

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