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.

Mercury doesn't give up its secrets easily. The smallest planet in our solar system is also one of the most extreme—a ...

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.