The planet Mercury is the closest planet to the sun, and also the most difficult for spacecraft to visit and explore. This is ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

A layer of diamonds up to 18 kilometers (11 miles) thick could be tucked below the surface of Mercury, the solar system's smallest planet and the closest to the sun, according to new research. The ...

Mercury's barren surface has led to the planet being labeled as "dead," but signs of geological activity say otherwise. Bright streaks known as "lineae," which can be seen on slopes across the planet, ...

A pair of still-attached probes just completed the closest flyby of the solar system’s least explored planet, capturing the first clear view of Mercury’s impact craters. BepiColombo pulled off its ...

While Mercury, the wily planet of communication, doesn’t station retrograde until November 9th, we’re locked and loaded to experience a lovely little preview of its hijinks. We’re talking shadows, ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A rare six-planet parade will stretch across the sky before ...