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.

We've known for over 30 years that there are other stellar systems in our galaxy, but we don't have any idea how many there ...

Learn what planet rains molten iron and which planet has two moons like Tatooine in Star Wars.

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

So in some sense, alien worlds were not first discovered in the 1990s or even the 1980s. It took nearly a century to fully ...

The planets are all too hot for life as we know it, but astronomers haven’t given up searching for more planets in Barnard's ...

Barnard's Star is a small, dim star of the type that astronomers call red dwarfs. Consequently, even though it is one of the ...

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

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...