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 ...

Starring in one of the most prolific TV shows in the world that spanned seven seasons and multiple movies, it could be hard ...

Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

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

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...

A team of astronomers used the James Webb Space Telescope to create the first 3D atmospheric map of an exoplanet. The fiery WASP-18b, a massive “ultra-hot Jupiter,” revealed striking temperature ...

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 ...

A polarizing Harvard astronomer has been appointed to lead a Trump administration panel studying UFOs. Avi Loeb is leading a ...

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 ...