Astronomers have found a remarkable pair of stars that may finally prove a long-debated theory. Described in the journal ...

Astronomers have discovered the "missing link" connecting the death of sunlike stars to the birth of white dwarf stellar ...

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 ...

White dwarfs typically have a radius just .01 times that of our own sun, but their mass is about the same. Stars like our sun fuse hydrogen in their cores into helium.

White dwarfs are born hot, often in the region of about 180,000 degrees Fahrenheit (100,000 degrees Celsius), although some have been found even hotter.

White dwarfs are unique because their temperature is inconsistent, Whyte explained. Since the late-stage stars no longer have a fuel source, they spend the remainder of their lives cooling down.

Astronomers theorize that a low-mass white dwarf, a compact core of a dead star about as large as Earth, could be the culprit. A cosmic mystery surrounding a black hole some 270 million light ...

Astronomers spotted a potential Earth-size rocky world orbiting a white dwarf, suggesting a future in which our planet outlives its star. By Jonathan O’Callaghan In six billion years the sun ...

White dwarfs don’t usually emit strong X-ray signals, causing astronomers to suspect something unusual was going on at WD 2226-210. Telescope observations confirmed that the X-ray signal from ...