The Sculptor Dwarf Galaxy is one of the Milky Way’s dozens of known satellite galaxies roughly 300,000 light-years away. Skip to content Introducing the all-new Astronomy.com Forum!

Some scientists think they discovered a new dwarf planet at the edge of the solar system, so far away that it takes around 25,000 years to complete one orbit around the sun. Astrophysicist Dr ...

U.S. astronomers hunting for "Planet Nine" have instead stumbled on what appears to be a new dwarf planet in the solar system's outer reaches.

A dwarf planet called 50000 Quaoar that orbits beyond Neptune appears to have a ring that shouldn't be there, at 7.4 times more distant than the planet's radius.

Earth has a newly-discovered neighbor in the solar system.. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

A possible new dwarf planet has been discovered at the edge of our solar system, so far-flung that it takes around 25,000 years to complete one orbit around the sun. The object, known as 2017 ...

The Fornax Dwarf is a satellite galaxy of the Milky Way, and the second discovered. It was found by astronomer Harlow Shapley, shortly after he identified one in Sculptor. He described both in a ...

Learn all about the dwarf planet Ceres, including what type of object it is, where it is located and what NASA's Dawn mission has discovered about it. Skip to main content.

A black dwarf should not be confused with a black hole or a neutron star, both of which have been observed. Additional resources: Learn more about the life cycle of stars from NASA's Imagine the ...