Last year, an interstellar traveler entered our solar system. Some speculated that it was an alien spacecraft, but it turned ...

A mysterious object from another star system is racing through our Solar System, and every major space telescope is watching.

'This one's exciting.' ...

With new technologies come new opportunities. And that is especially true in astronomy—with every new advanced telescope, we ...

Observations of the fast-moving interstellar comet with the Very Large Telescope in Chile support similar observations made ...

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 ...

Astronomers have sharply revised down the mass of nearby super Earth GJ 3378b, dramatically improving its prospects as a ...

It catches very low frequency radio waves made by lightning, solar storms and charged particles moving through Earth’s ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals . Unexplained gases on other planets. Things mistaken for UFOs ...