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…
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…
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…
Astronomers see Dead Planets Crashing Into Dead Stars
Some planets end by colliding with the remnant of their once shining star.
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.
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…
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…
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.…
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…
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…