White dwarf
Did this Supernova Explode Twice?
All supernovae are exploding stars. But the nature of a supernova explosion varies quite a bit. One type, named Type…
One Side of This White Dwarf is Covered in Hydrogen While the Other Side is Helium.
Here's a new one. Astronomers have found a white dwarf star - the dead remnant from a main sequence star…
A White Dwarf is Starting to Crystallize into Diamond
White dwarfs are the stellar remnants of stars like our Sun. They're strange objects, and astrophysicists think their cores can…
A White Dwarf is Surrounded by Torn-up Pieces of its Inner Planets and its Kuiper Belt
What will happen to our Sun? In several billion years, it'll cease fusion, shrivel into a white dwarf, and emanate…
Astronomers Spot the Debris From Planets That Formed 10 Billion Years ago
Astronomers find the remnants of ancient planetary systems, and a glimpse of our fate.
A Dying Star’s Last Act was to Destroy all Its Planets
When white dwarfs go wild, their planets suffer through the resulting chaos. The evidence shows up later in and around…
Astronomers Finally Catch a Nova Detonating on a White Dwarf as it's Happening
On July 7, 2020, the X-ray instrument eROSITA captured an astronomical event that – until then – had only been…
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…