Dwarf galaxies often appear to align mysteriously around their host galaxies. A new study proposes an unprecedented ...

Researchers discovered a new trans-Neptunian object, 2017 OF201, potentially a dwarf planet, in the outer solar system.

Here’s how it works. The ultimate stage of stellar evolution for many stars is a black dwarf. Because they emit no heat or light, these objects would be a challenge to detect if they existed today.

The failed star, also known as a brown dwarf, sits about 1,400 light-years from Earth and orbits an entity called a white dwarf. White dwarfs are cooling remnants of sun-like stars that ran out of ...

Astronomers have made a first-of-its-kind discovery — a white dwarf star with two completely different faces. White dwarfs are burnt remains of dead stars. Our sun will become a white dwarf in ...