Analyzing gravity data collected by spacecraft orbiting other worlds reveals groundbreaking insights about planetary ...

So which planets in our solar system have rings?All four giant planets — Jupiter, Saturn, Uranus and Neptune — sport these ...

A pair of groundbreaking NASA studies, published in Nature, have unveiled new insights into the interiors of the Moon and the ...

Scientists have uncovered fascinating new details about the internal structures of both the moon and the asteroid Vesta using ...

A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

Pluto was reclassified as a dwarf planet in 2006. Our solar system may have a ninth planet after all, researchers say. The possibility that an additional planet may be hidden far into the solar ...

The solar system consists of our star, the sun, and everything bound to it by gravity: the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, along with dwarf planets like ...

"Rings are mostly made of ice and small rocks," said William Saunders, a planetary scientist at NASA's Langley Research ...

Pluto was officially reclassified from a planet to a dwarf planet by the International Astronomical Union (IAU) in August 2006. While Pluto orbits the Sun and is large enough to be spherical due ...

Astronomers have discovered a freezing-cold world orbiting within the so-called "forbidden zone" around a dying star in which planets are normally destroyed. The 5.8-billion-year-old white dwarf ...

They lie about 250 astronomical units from a third brown dwarf, making the system even more complex. Adding a planet to this picture only deepens the mystery. The system belongs to the Argus ...