Explosive nucleosynthesis is a research area in nuclear astrophysics that investigates the production of chemical elements and isotopes in environments where rapid energy release drives nonequilibrium nuclear reactions, typically associated with stellar explosions such as core-collapse and thermonuclear supernovae, novae, and neutron star mergers. It focuses on reaction networks under extreme temperatures, densities, and dynamic timescales, including rapid neutron capture (r-process), rapid proton capture (rp-process), and explosive silicon and oxygen burning. The field integrates nuclear reaction cross sections, equation-of-state physics, hydrodynamic simulations, and observational abundance patterns to constrain explosion mechanisms and the origin of heavy elements in the universe.
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 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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A Mississippi State physicist has produced a direct laboratory measurement of a key nuclear reaction believed to occur during explosive bursts on neutron stars. These bursts forge heavier elements—the building blocks of planets ...
Astronomy
Mar 31, 2026
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In our galaxy, a supernova explodes about once or twice each century. But historical astronomical records show that the last Milky Way core-collapse supernova seen by humans was about 1,000 years ago. That means we've missed ...
Astronomy
Jan 28, 2026
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Researchers have reported new experimental results addressing the origin of rare proton-rich isotopes heavier than iron, called p-nuclei. Led by Artemis Tsantiri, then-graduate student at the Facility for Rare Isotope Beams ...
General Physics
Jan 22, 2026
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When the most massive stars reach the ends of their lives, they blow up in spectacular supernova explosions, which seed the universe with heavy elements such as carbon and iron. Another type of explosion—the kilonova—occurs ...
Astronomy
Dec 16, 2025
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Carl Sagan famously said that "We're all made of star stuff." But he didn't elaborate on how that actually happened. Yes, many of the molecules in our bodies could only have been created in massive supernovae explosions—hence ...
Planetary Sciences
Dec 15, 2025
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For the first time, scientists have made a clear X-ray detection of chlorine and potassium in the wreckage of a star using data from the Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) spacecraft.
Astronomy
Dec 8, 2025
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A research team from the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) has directly measured the masses of two highly unstable atomic nuclei, phosphorus-26 and sulfur-27. These precise measurements ...
Astronomy
Dec 5, 2025
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27
"Why are we here?" is humanity's most fundamental and persistent question. Tracing the origins of the elements is a direct attempt to answer this at its deepest level. We know many elements are created inside stars and supernovae, ...
Astronomy
Dec 4, 2025
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