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.

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

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

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

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

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

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.

Scientists have discovered what might be only the third known interstellar object to pass through our solar system, the ...

NASA also points out that July and August is an excellent chance to view the constellation Aquila, also known as the eagle as ...

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

Passing stars could trigger instability across the solar system, resulting in Earth being hauled out of its orbit.