Stellar evolution as a research area investigates the physical processes governing the formation, structural changes, and end states of stars across cosmic time, using stellar structure theory, nuclear astrophysics, hydrodynamics, and radiative transfer. It encompasses modeling of protostellar collapse, main-sequence hydrogen burning, post–main-sequence shell burning, and advanced nucleosynthesis up to core collapse or thermonuclear disruption, as well as mass loss, rotation, magnetic fields, and binary interactions. The field integrates observations (e.g., HR diagrams, asteroseismology, stellar populations) with numerical simulations to constrain stellar lifetimes, remnant formation (white dwarfs, neutron stars, black holes), and the chemical and energetic feedback of stars into galaxies.
Astronomers may have discovered one of the clearest examples yet of a rare "pair-instability" supernova. It is a catastrophic explosion thought to completely destroy some of the most massive stars in the universe, leaving ...
An international team of researchers has developed new stellar and supernova models to explain the mysterious elemental abundance patterns left by billions of supernova explosions around the Perseus constellation, which have ...
Astronomy
May 14, 2026
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The most massive black holes in the universe detected by the ripples they make in spacetime were not born directly from collapsing stars, according to a new study. These cosmic giants instead build up through a series of ...
Astronomy
May 7, 2026
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Astronomers have long known that neutron stars, the crushed cores left behind after massive stars explode, should be scattered throughout the Milky Way galaxy. However, most of them are effectively invisible. A new study ...
Astronomy
May 6, 2026
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Astronomers now estimate there is at least one planet for every star in our galaxy. These worlds, called exoplanets, are planets that orbit stars outside our solar system. But new research from McMaster University reveals ...
Astronomy
Apr 29, 2026
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From birth to death, stars generally slow by 100 to 1,000 times their initial rotation rates; in other words, they "spin down." The sun's total angular momentum has declined as material is gradually blown off at the surface ...
Astronomy
Apr 27, 2026
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A star's mass determines its entire life story, from how it shines to how it dies. For young stars shrouded in dust, getting an accurate mass has long been difficult, but new radio measurements are beginning to change that. ...
Astronomy
Apr 24, 2026
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The Perseus Cluster is a massive galaxy cluster located in the constellation Perseus. It is one of the largest structures in the observable universe, comprising more than a thousand galaxies—equivalent to roughly a thousand ...
Astronomy
Apr 19, 2026
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The launch of NASA's James Webb Space Telescope (JWST) in 2021 pushed the horizon of seeing the early universe, unveiling cosmic events just a few hundred million years after the Big Bang. Among the most striking discoveries ...
Astronomy
Apr 16, 2026
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SN 2025mkn is a Type II supernova and it wasn't supposed to be visible at all. The violent death of a massive star that had exhausted its nuclear fuel and collapsed under its own gravity sits at a redshift of 1.371. That ...
Astronomy
Apr 15, 2026
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