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 ...

Mercury is an odd little planet. The closest world to the Sun has some extreme surface structures, steep hills and cliffs, ...

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

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

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