Particle astrophysics is a research area at the interface of particle physics, astrophysics, and cosmology that investigates fundamental particles and their interactions using astrophysical sources and environments. It focuses on high-energy messengers such as cosmic rays, gamma rays, neutrinos, and, increasingly, gravitational waves to probe processes in extreme settings like supernovae, active galactic nuclei, compact object mergers, and the early universe. The field seeks to constrain particle properties, test physics beyond the Standard Model, study dark matter and dark energy candidates, and elucidate acceleration and propagation mechanisms through multi-messenger observations and advanced detection techniques.
A USC-led research team has created a series of supercomputer-simulated twins of our Milky Way galaxy—which could help scientists unlock new answers about one of the biggest mysteries in the universe: dark matter, the invisible ...
Astronomy
Jun 16, 2025
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A cosmic particle detector in Antarctica has detected a series of bizarre signals that defy the current understanding of particle physics, according to an international research group that includes scientists from Penn State. ...
General Physics
Jun 13, 2025
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A new study has revealed a novel effect caused by dark photons—hypothetical particles thought to make up a portion of the universe's elusive dark matter. This discovery, made within the framework of Einstein–Cartan–Holst ...
General Physics
Jun 3, 2025
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Tracking the sources of photons is a hobby of many astrophysicists. Some types of photons are tied so closely to particular phenomena that tracking their sources would help answer some larger questions in astrophysics itself.
Astronomy
May 16, 2025
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In a new study published in Physical Review Letters, scientists have estimated a new lower bound on the mass of ultra-lightweight bosonic dark matter particles.
A study by Dartmouth researchers proposes a new theory about the origin of dark matter, the mysterious and invisible substance thought to give the universe its shape and structure. They say the hypothetical force shaping ...
General Physics
May 14, 2025
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Axions, hypothetical subatomic particles that were first proposed by theoretical physicists in the late 1970s, remain among the most promising dark matter candidates. Physics theories suggest that the interactions between ...
Buried deep in the ice in the Antarctic are "eyes" that can see elementary particles called neutrinos, and what they've observed is puzzling scientists: a remarkably strong neutrino signal accompanied by a surprisingly weak ...
General Physics
May 8, 2025
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Researchers, students and science-lovers across the world now have access to the design of the globally significant SABRE South dark matter experiment in the lead up to its installation in the Stawell Underground Physics ...
General Physics
Apr 28, 2025
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The detection of dark matter, an elusive form of matter believed to account for most of the universe's mass, remains a long-standing goal within the physics research community. As this type of matter can only emit, reflect ...
