white dwarf

James Webb Will Look for Signs of Life on Planets Orbiting Dead Stars

Can the galaxy's dead stars help us in our search for life? A group of researchers from Cornell University thinks…

1 month ago

There’s a flash of ultraviolet just as a white dwarf is exploding as a supernova

Astronomers recently spotted a rare type of supernova explosion that was accompanied by a massive flare of ultraviolet radiation. Untangling…

3 months ago

A Star had a Partial Supernova and Kicked Itself Into a High-Speed Journey Across the Milky Way

Supernovae are some of the most powerful events in the Universe. They're extremely energetic, luminous explosions that can light up…

3 months ago

White dwarfs are a big source of carbon in the Universe

In their nuclear hearts, stars fuse elements heavier than hydrogen, creating the ingredients necessary to make planets, oceans, and people.…

4 months ago

Astronomers Watch a Nova Go From Start to Finish for the First Time

A nova is a dramatic episode in the life of a binary pair of stars. It's an explosion of bright…

6 months ago

Astronomers Watched a Star System Die

About 570 light years from Earth lies WD 1145+017, a white dwarf star. In many respects it's a typical white…

7 months ago

Two White Dwarfs Merged Together Into a Single “Ultramassive” White Dwarf

Astronomers have found a white dwarf that was once two white dwarfs. The pair of stars merged into one about…

8 months ago

Forget Betelgeuse, the Star V Sagittae Should Go Nova Within this Century

The star V Sagittae is the next candidate to explode in stellar pyrotechnics, and a team of astronomers set the…

10 months ago

This Star Has Reached the End of its Life

About 10,000 light years away, in the constellation Centaurus, is a planetary nebula called NGC 5307. A planetary nebula is…

1 year ago

This Star Has Been Going Nova Every Year, for Millions of Years

A nova star is like a vampire that siphons gas from its binary partner. As it does so, the gas…

2 years ago