Some of the most common planets in our galaxy may be hiding far more water than scientists can currently detect—even with the ...

For instance, what if we really are being visited by aliens from other worlds and they turn out to be aggressive, violent, ...

Researchers probe the geochemistry of the moon, Mars, asteroids, and water worlds to understand our home and plan for future ...

Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets ...

Hollywood makes initiating alien contact seem much easier than it has proven to be. In E.T. the Extraterrestrial, E.T. got ...

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

If humans vanished, evolution might not crown another primate. One unlikely marine predator has the brain, dexterity, and ...

From Project Hail Mary to Independence Day, Alien to Arrival, these alien movies are much better than Disclosure Day.

That little alien emoji staring back from your phone, with its smooth, bulbous head and almond-shaped black eyes, has ...

Get the latest federal technology news delivered to your inbox. You might think this column is about UFOs and the Pentagon's ...

Ancient Egypt has captivated people for centuries, inspiring countless books, documentaries, and blockbuster movies. Yet many ...

The search for life beyond Earth has always been full of surprises. Strange radio signals have sparked excitement. Odd gases on distant worlds have raised questions. Even ordinary objects have been ...