Astronomers discover a rare white dwarf formed by a stellar merger, challenging what we know about star death and cosmic collisions.

An international team of astronomers using the Hubble telescope has discovered an ultra-massive white dwarf formed not from a ...

A typical white dwarf’s core elements are obscured by thick layers of hydrogen and helium—but that covering almost entirely ...

The white dwarf is depicted above the Moon in this artistic representation; in reality, the white dwarf lies 130 light-years away in the constellation of Aquila.

University of Warwick astronomers have uncovered compelling evidence that a nearby white dwarf is in fact the remnant of two ...

White dwarfs are the dense cores left behind when stars burn through their fuel. Researchers say most have thick outer layers ...

A rare white dwarf merger remnant emerges in ultraviolet light, revealing thin layers of hydrogen and helium stripped away ...

Zombie white dwarf stars keep their heavy metal exteriors fresh by constantly cannibalizing any smaller objects in their dead planetary systems, like comets and asteroids, that get in their way.

Some white dwarfs, including AE Aquarii, spin very rapidly and have magnetic fields millions of times stronger than Earthu001as. These characteristics give them the energy to generate cosmic rays.

In this artist’s concept, the white dwarf (left) in the binary system HD 49798/RX J0648.0-4418 is shown spinning while surrounded by an accretion disk of matter taken from its larger binary ...

Whereas white dwarfs have incredibly high densities by earthly standards, neutron stars are even denser, cramming roughly 1.3 solar masses into a city-sized sphere.