There are five known dwarf planets in our solar system. One of them is named Ceres, after the Roman goddess of corn, agriculture, and harvests. Ceres is the closest dwarf planet to the sun.

Long before astronomers discovered the first exoplanet in 1992, the idea of worlds orbiting distant stars captivated the ...

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

The largest object is the asteroid belt is the dwarf planet Ceres ... a field-of-view large enough to capture the entire planet It is about five times the distance from the Sun that Earth is ...

Not fulfilling the second criteria, Pluto went from being the ninth planet in our solar system to one of five dwarf planets, with the IAU stating that Pluto is "an important proto-type of a new ...

A decades-old cosmic mystery may finally be solved. Scientists now suspect that the strange X-ray glow from a distant white ...

We float through space revolving around the Sun along with seven other planets and five dwarf planets—including Pluto, which was demoted from its planetary status in 2006. Sometimes, we look up ...