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A white dwarf is a stellar core remnant composed mostly of electron-degenerate matter. A white dwarf is very dense: its mass is comparable to the Sun's, while its volume is comparable to Earth's. A white dwarf's low luminosity comes from the emission of residual thermal energy; no fusion takes place in a white dwarf.
May 2, 2024 · Learn about white dwarf stars, the dense and compact remnants of intermediate- and low-mass stars that have exhausted their nuclear fuel. Find out how they are supported by degeneracy pressure, what their mass-radius relationship is, and what their evolution and fate are.
- The Editors of Encyclopaedia Britannica
Apr 25, 2023 · White dwarfs are the hot, dense cores of dead stars that mark the final stage of evolution for most stars, including our sun. Learn how they are born, what they are made of, and how they can explode or fade away in this astronomy essentials article.
Mar 4, 2022 · White dwarfs are what is left when stars like our sun have exhausted all of their fuel. They are dense, dim, stellar corpses — the last observable stage of evolution for low- and medium-mass...
SCIENCE. REFERENCE. White Dwarfs. Find out more about the Solar System's aging stars. 4 min read. When they reach the end of their long evolutions, smaller stars —those up to eight times as...
Learn how white dwarfs and neutron stars are formed from the death of stars, and how they affect the universe with their gravity, radiation, and chemistry. Explore the research topics and projects of Center for Astrophysics scientists on these compact objects.
Mar 23, 2008 · Learn how NASA's Hubble Space Telescope discovered the oldest burned-out stars in our Milky Way Galaxy, which provide a new way to measure the age of the universe. See images of the globular cluster M4, where the white dwarf stars are located.
