γ-ray bursts

Gamma-ray bursts (GRBs) are extremely powerful explosions observed in distant galaxies, emitting intense high-energy radiation over seconds to minutes. They are thought to originate from catastrophic events such as the collapse of massive stars into black holes or neutron star mergers. During these events, jets of energetic particles are launched at nearly the speed of light, producing the gamma rays we detect. Despite their brief duration, GRBs are among the most luminous and energetic phenomena in the universe, providing valuable insights into cosmic processes and the life cycles of stars.