White dwarf stars represent the evolutionary endpoints of medium- and low-mass stars, comprising the dense, electron-degenerate cores left after nuclear fuel exhaustion. In binary systems, ...

WASHINGTON, April 7 (Reuters) - Astronomers have spotted two hefty white dwarf stars - highly compact stellar embers - orbiting close together that appear destined to die in an extraordinarily violent ...

Some white dwarfs in rapid binary orbits are far hotter and larger than theory predicts. Researchers found that powerful tidal forces between them generate enough heat to inflate their sizes and ...

Artist's impression of a red dwarf (left) and a white dwarf (center) orbiting each other. The stars’ orbit is so tight that their magnetic fields interact, causing pulses of radio emission every two ...

Astronomers have observed a white dwarf – a highly compact Earth-sized stellar ember – that is creating a colorful shockwave as it moves through space, leaving them searching for an explanation. The ...