Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that ...

Since the 1990s, astronomers have found a handful of other dwarf planets in the belt, such as Eris and Sedna, along with ...

"The most likely explanation for the dimming is a brown dwarf – an object heavier than a planet but lighter than a star – surrounded by a vast and dense ring system." ...

Enceladus’s geysers power vast electromagnetic wave systems that redistribute energy throughout Saturn’s magnetosphere.

Astronomers have found a rocky planet where it should not exist, orbiting far from a cool red star. Could this strange ...

Discover the Kuiper Belt: a frozen ring of dwarf planets and trillions of icy bodies, currently being explored by NASA's New Horizons mission.

Mercury is the smallest planet in our solar system. Explore its size, extreme temperatures, core structure, and comparison with Pluto.

Scientists have produced the first global map and analysis of small mare ridges (SMRs) on the moon, a characteristic ...

"This strange disorder makes it a unique inside-out system," study lead author Thomas Wilson, physics professor from the University of Warwick, said in a statement. "Rocky planets don't usually form ...

Their observations of a faint, cool M-dwarf star called LHS 1903 revealed a system with a rocky world at its outer edge. LHS ...

A rocky exoplanet in the LHS 1903 system defies planet formation models, hinting that gravitational upheaval reshaped the red dwarf’s four worlds.

SHOCKED astronomers have spotted a “rogue” planet that defies historic theories. A unique “inside out” planetary system with a distant rocky world turns our ...