This means black dwarfs remain a conceptual stage in a star's death. The process for high-mass stars (eight solar masses or more) is much quicker, as they convert their hydrogen fuel much more ...

For over 40 years, astronomers have been puzzled by strange X-ray signals from the Helix Nebula’s white dwarf. Now, they may ...

High-mass stars, on the other hand ... which sets off a final collapse and catastrophe. When low-mass stars die, they collapse under their own weight until their centers act in some ways like ...