Feb 4, 2025 · For years, astronomers assumed that white dwarfs—stellar remnants left behind after a star like our Sun burns out—were cold, dead husks incapable of supporting life. …

Feb 15, 2025 · White dwarfs gradually cool, which means their habitable zones shrink over time. However, recent research suggests some white dwarfs experience slowed cooling periods, …

Jan 14, 2025 · Scientists have detected emanating from the nucleus of a galaxy relatively close to our Milky Way flashes of X-rays gradually increasing in frequency that seem to be coming from …

Irvine, Calif., Feb. 13, 2025 — Among the roughly 10 billion white dwarf stars in the Milky Way galaxy, a greater number than previously expected could provide a stellar environment …

May 17, 2023 · As stars up to eight times heavier than our Sun start to run out of nuclear fuel in their core, they puff off their outer layers. This process gives rise to the colourful clouds of gas …

According to theory, stars that start their lives with masses from 0.1 times the mass of the Sun to 8 to 10 solar masses will all die as white dwarfs. The upper limit on this mass range isn't well …

Mar 9, 2024 · They’ve found that some white dwarfs are a bit hotter than they should be. A new study may help explain why. Schematic representation of the two scenarios of white dwarf …

Sep 27, 2024 · About 4,000 light-years away in the Milky Way, scientists have seen a rocky world continuing to orbit a white dwarf, the remaining dim core of the once-active star.

Feb 27, 2024 · Astronomers have discovered a weird white dwarf star with a metallic scar on its surface — the last remnant of a hapless planet consumed by the killer star. The white dwarf, …

Sep 17, 2020 · Astronomers have spotted signs of an intact giant planet circling a superdense stellar corpse known as a white dwarf, a new study reports. The white dwarf in question, called …

Feb 20, 2025 · An illustration shows a white dwarf stellar remnant in a binary system with a sun-like star. (Image credit: Robert Lea (created with Canva)) When two sun-like stars exist in the …

Mar 21, 2024 · Recent observations show that some white dwarf stars suddenly stop cooling. Now, scientists propose a 'fountain of youth' mechanism that may explain how these stellar …

Apr 9, 2024 · Scientists predict the death of our solar system. Scientists continue to unlock the mysteries of the universe as they ponder a grim future for our solar system. Leading scientists …

Stars with masses of 8 \(M_{\text{Sun}}\) or less can lose enough mass to become white dwarfs, which have masses less than the Chandrasekhar limit (about 1.4 \(M_{\text{Sun}}\)). The …

Jan 27, 2025 · The interior of a white dwarf is not only much denser than anything found on Earth but also much hotter, even by the time the star freezes. Once completely frozen, our white …

Apr 10, 2024 · According to a new paper in the journal Monthly Notices of the Royal Astronomical Society, planets and moons orbiting close to a white dwarf that survive the star's expansion …

Jul 24, 2023 · Astronomers have discovered a white dwarf star, or the burnt core of a dead star, that has two completely different faces. One is made of hydrogen, while the other is made of …

Feb 14, 2025 · Astrophysicists have unearthed a surprising diversity in the ways in which white dwarf stars explode in deep space after assessing almost 4,000 such events captured in detail …

May 14, 2015 · The heart of the giant globular star cluster 47 Tucanae in the Hubble Space Telescope image at left reveals the glow of 200,000 stars. The green box outlines the cluster's …