They’re not a perfect match, but it’s way too hot on the first planet for us to hop over and confirm for ourselves.

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our Solar System -- only the third ...

Scientists may have solved alongstanding mystery in the study of Mercury. For the first time, pieces of the Solar System’s ...

According to US space agency NASA, the interloper - named 3I/ATLAS - was first spotted on Tuesday by an Asteroid ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

A meteor shower, a planet sighting, and a full moon. Here's how to see all of space's eye-catching activity in July.

Pieces of Mercury may have been found on Earth, potentially allowing scientists to study the Solar System's innermost planet.

As the closest planet to the Sun, Mercury is exposed to the star's enormous gravitational field. And it's really stressful.

New research suggests that Mercury's crust is shifting and twisting in unexpected ways thanks to the force of the Sun.

For folks in the United States, July evenings mean 4th of July fireworks. While you're waiting for the show, be sure to watch ...