Astronomers have traced the origin of a colossal white dwarf to a catastrophic crash between two dead stars, turning a quiet stellar ember into a cosmic heavyweight. Using the Hubble Space Telescope, ...

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 ...

What can white dwarf stars eating their own planets teach astronomers about planetary and solar system formation and evolution? This is what a recent study published in The Astrophysical Journal hopes ...

Sirius is a blue giant, which burns through its fuel quickly and lives only a relatively short period of time. Yet it has a ...

Unusual stellar remnants suggest the Milky Way might have eaten a galaxy called Loki billions of years ago, according to new ...

Tiny galaxies orbiting the Milky Way may hold clues to one of cosmology’s biggest mysteries. Ultra-faint dwarf galaxies are ...

Artist’s impression of the long-period transient J1634+44, revealed to be a white dwarf with a companion. Credits: NSF/AUI/NSF NRAO/P. Vosteen. LOFAR is a low-frequency radio astronomy array that ...

For the first time, astronomers have spotted a star that exploded not once, but twice. A new image of a roughly 300-year-old supernova provides visual evidence that some dying stars undergo a double ...

Researchers at the Institute of Science and Technology Austria (ISTA) say two white dwarfs, Gandalf and Moon-Sized, define a new class of star remnants because they share five properties, including ...

This ultra‑massive white dwarf, located about 130 light‑years away, carries evidence of a rare white dwarf merger. With 20 percent more mass than the Sun, WD 0525+526 stands out among common stellar ...