Science ❯ Astrophysics

High-Energy Astrophysics

X-ray Emission X-ray Astronomy X-ray Emissions Matter-Antimatter Production Supermassive Black Holes X-Ray Emission Neutrino Sources Particle Acceleration Jets Quasi-Periodic Eruptions Gamma-Ray Astronomy Cosmic Explosions Gamma-ray Astronomy Radiation Processes Binary Pulsars Pulsars Gamma Rays Spectral Energy Distribution Gamma Radiation Gas Accretion Multi-Messenger Astronomy

XRISM Confirms White Dwarf Powers Gamma Cassiopeiae’s Extreme X-Rays

The result pins the emission on accretion onto a magnetic white dwarf, prompting updates to models of how massive binaries evolve.

KM3NeT Study Points to Blazar Population as Plausible Source of Record 220 PeV Neutrino

Early-Universe Quasar Defies Models With 13 Times the Eddington Limit, Bright X-Rays and a Radio Jet

JWST Spots Record-Distant Supernova Tied to March Gamma-Ray Burst

Record-Setting Day-Long GRB 250702B Confirmed at z = 1.036 as Origin Remains Unsettled

VLBA Unveils Toroidal Magnetic Field in Neutrino-Bright Blazar Jet