White dwarf

If There are Dyson Spheres Around White Dwarfs, We Should be Able to Detect Them

Searching for Dyson spheres, rings, or swarms remains a preoccupation of many astronomers.  If there are any out there, they…

2 years ago

A New Kind of Stellar Explosion Has Been Discovered: Micronovae

The most energetic explosions in the Universe come from stars called supernovae. These galactic bombs have the energy of about…

2 years ago

Planet Found in the Habitable Zone of a White Dwarf

Most stars will end their lives as white dwarfs. White dwarfs are the remnant cores of once-luminous stars like our…

2 years ago

Astronomers see Dead Planets Crashing Into Dead Stars

Some planets end by colliding with the remnant of their once shining star.

2 years ago

Aging White Dwarfs Become Even More Magnetic

A survey of white dwarfs shows they get more magnetic as they age, and we don't know why.

2 years ago

White Dwarfs can Continue Burning Hydrogen, Even After They’re Dead

White dwarfs are supposed to be dead remnants of stars, doomed to simply fade away into the background. But new…

2 years ago

A Nearby White Dwarf Might be About to Collapse Into a Neutron Star

A white dwarf star has been found that's more massive than our Sun, but about the same size as our…

3 years ago

How can White Dwarfs Produce Such Powerful Magnetic Fields?

White dwarfs have some surprisingly strong magnetic fields, and one team of astronomers may have finally found the reason why.…

3 years ago

White Dwarf Atmospheres Might Contain the Pulverized Crusts of Their Dead Planets

Astronomers have developed a new technique to search for exoplanets - by looking for their crushed up bones in the…

3 years ago

Strange Green Star is the Result of a Merger Between two White Dwarfs

Chandrasekhar found there is an upper limit for the mass of a white dwarf, but some white dwarfs can break…

3 years ago