NASA researchers suggest a surprising discovery on planet Mercury: a diamond layer approximately 10 miles thick, adding to ...

Mercury, the smallest and innermost planet in our solar system, may be home to a dazzling secret hidden beneath its scorched ...

"What surprised us, at the end, was how effective this type of impact could be in explaining Mercury's unusual structure ...

Jupiter is the largest planet in the solar system. It's about 11 times wider than Earth with an equatorial diameter of 88,846 ...

April’s planetary parade has fewer planets. Only four will line up: Venus, Saturn, Mercury and Neptune. April's parade of ...

By Will Dunham WASHINGTON (Reuters) -Astronomers have spotted a small rocky planet that orbits perilously close to its host ...

The astronomers spotted the planet using NASA's Transiting Exoplanet Survey Satellite (TESS), an MIT-led mission that ...

About 5,800 planets beyond our solar system, called exoplanets, have been discovered since the 1990s. Of those, only four ...

Venus is the hottest planet in the solar system due to its thick carbon dioxide atmosphere, trapping heat as part of a ...

Learn why the planet, BD+05 4868 Ab, is only the fourth such discovered and will disappear in one to two million years.

Astronomers have discovered one of the least habitable planets ever. This tiny world is being melted by its host star, ...