Hubble Space Telescope observations of white dwarf star G238-44 has shown that it is "consuming both rocky-metallic and icy ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Inset: an illustration of a white dwarf. Main top: Gaia22ayj seen in X-rays and visible light.

A case of astronomical fratricide is doomed to end in a fiery supernova bright enough to be spotted from Earth during the day ...

Astronomers are witnessing a celestial drama unfold in the V Sagittae star system, located 10,000 light-years away. A dense ...

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 ...

A study of supernova remnant SNR 0519-69.0 using the Chandra X-ray telescope, Hubble and more has narrowed down its age to ...

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 ...

The future of yellow dwarf stars, like our sun, is determined almost entirely by their mass. The most massive stars, about eight to 12 times heftier than the sun, can explode as supernovae, leading to ...

Two new stars, or nova eruptions, have been resolved in unprecedented detail by six optical telescopes operating in unison as ...