Scientists have identified new clues that could help astronomers spot one of the most famous hypothetical alien ...

A planet with one side permanently roasting and the other frozen in endless darkness might still have a chance of supporting life. Researchers found that heat inside a tidally locked exoplanet could ...

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

A siphonophore—a colonial marine invertebrate related to the venomous stinging Portuguese Man-o-war—is scanned using Deep ...

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