Add Yahoo as a preferred source to see more of our stories on Google. An artistic impression of Nova V1674 Herculis. The recent deaths of two white dwarf stars are challenging our understanding of ...

Two puzzling astronomical objects are white dwarfs formed by mergers of less massive white dwarfs, the discoverer of both claims, but they have curious features that suggest they represent a new class ...

Stars often die with a final burst of beauty. For the first time, astronomers have captured visual proof that a star can explode not once, but twice before fading forever. Using the European Southern ...

Using the largest catalog of exploding white dwarf vampire stars ever gathered has provided further evidence that dark energy, the mysterious force accelerating the expansion of the universe, is ...

Astronomers at Michigan State University and the University of Michigan have teamed up on research that's taken the highest-resolution images to date of star explosions called novae (the plural of ...

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

Astronomers find an explanation for the fastest stars in the galaxy while uncovering a new mechanism for a supernova explosion. Credit: Technion illustration Astronomers call a special kind of ...

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