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white dwarf

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…

2 days 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…

1 month 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…

3 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…

7 months 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…

1 year ago

A Guide to Hunting Zombie Stars

Apparently not all supernovas work. And when they fail, they leave behind a half-chewed remnant, still burning from leftover heat…

1 year ago

You’re Looking at an Actual Image of a White Dwarf Feeding on Material from a Larger Red Giant, 650 Light Years from Earth.

The SPHERE planet-hunting instrument on the European Southern Observatory’s Very Large Telescope captured this image of a white dwarf feeding…

1 year ago

348 Years Ago, a French Astronomer Monk Might have Witnessed the Collision Between a White and Brown Dwarf Star

A collision between a white dwarf and a brown dwarf created the object we call CK Vulpeculae. It was first…

1 year ago

Astronomers Figure Out How to use Gravitational Lensing to Measure the Mass of White Dwarfs

An international team of scientists has found a way to use white dwarf stars as gravitational lenses, which will allow…

2 years ago

A Brown Dwarf Prevented a Regular Star from Going Through its Full Life Cycle

A team of Brazilian astronomers recently made an unexpected discovery, a binary system consisting of a low mass-white dwarf with…

2 years ago