Found in an ultrafaint dwarf galaxy, the ancient star’s unusual chemistry indicates it formed from gas enriched by a single ...

A star you can see with the naked eye has kept astronomers guessing for decades with its unusually powerful X-rays. Now, ...

In about 5 to 8 billion years, our sun is expected to evolve into a white dwarf—an extremely dense, Earth-sized stellar ...

"Failed star" brown dwarfs may get a second chance to shine by colliding and merging to birth a new star.

Add Yahoo as a preferred source to see more of our stories on Google. Astronomers found that a 3-billion-year-old white dwarf, LSPM J0207+3331, is still feasting on the metal-rich remains of a ...

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, ...

New observations of 'forbidden' planet TOI5205-b reveal surprising details about it its atmospheric chemistry.

A rare white dwarf merger remnant emerges in ultraviolet light, revealing thin layers of hydrogen and helium stripped away during a cosmic collision. Scientists at the University of Warwick report the ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered an extrasolar planet orbiting TOI-4616—a nearby M-dwarf star. The newfound alien world, ...

Astronomers have discovered a rare binary system of brown dwarfs transferring mass in an ultra-tight orbit. Located about ...

A naked-eye star’s 50-year mystery is solved—its bizarre X-rays come from a hidden, feeding white dwarf.

Astronomers use AI to classify white dwarfs and uncover rare stars with shifting surfaces and unusual chemistry.