The organic material found in a few areas on the surface of dwarf planet Ceres is probably of exogenic origin. Impacting asteroids from the outer asteroid belt may have brought it with them.

The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are unlikely to originate from its interior. The organic material found in a few ...

Pluto was discovered at Lowell Observatory in Flagstaff, Arizona in 1930 and was considered our ninth planet until 2006. The International Astronomical Union reclassified Pluto as a dwarf planet ...

The organic material on the dwarf planet Ceres is probably of extra-Ceresian origin: a recent study concludes that asteroids from the outer asteroid belt that crashed into the dwarf planet brought ...

In August 2006 the International Astronomical Union General Assembly adopted a resolution to reclassify Pluto as a dwarf planet. The reasoning was that it didn't satisfy one of three newly defined ...

Pluto, discovered in 1930, was once considered the ninth planet in our solar system. In 2006, the International Astronomical Union reclassified Pluto as a dwarf planet because it doesn't meet all ...

What was discovered in Flagstaff, Arizona, and killed off in Prague? If you answered "Pluto's planethood," your grasp of the astronomical is excellent. Feb. 18 marks the 95th anniversary of the ...

Six planets are visible in the night sky right now. On Feb. 28, Mercury will add a seventh planet to the planetary parade. Venus, Mars and Jupiter are 'great naked-eye targets' for beginning ...

The brown dwarf, not quite a planet or a star, is Gaia-5b. Respectively, they are 244 and 134 light-years away. "This discovery is an exciting tip-of-the-iceberg for the exoplanet discoveries we ...

WWE superstars are known for their entrance songs, and this article imagines what themes the planets would have if they entered the ring. Mercury chooses Eminem’s 'Lose Yourself' for speed ...