The diffuse photon background that fills the universe does not limit itself to the attention-hogging cosmic microwave background.
SKAO director-general Philip Diamond describes how the world's largest radio telescope went from concept to construction.
The new analysis significantly improve the upper bound on the strength of gravitational waves produced during the epoch of inflation.
This week, at the 37th International Cosmic Ray Conference, space- and ground-based detectors unveiled new cosmic-ray anisotropy measurements from GeV to tens of EeV.
The European Consortium for Astroparticle theory held its first annual symposium in May, bringing together hundreds of theoretical physicists across Europe.
Recent detection from LHAASO provides the first clear evidence of the presence of galactic “pevatrons”.
Cosmologist and theoretical physicist Licia Verde discusses the current tension between early- and late-time measurements of the expansion rate of the universe.
Gravitational waves crease and stretch the fabric of spacetime as they ripple out across the universe, potentially causing observable effects on beams in storage rings.
First results from the ANAIS experiment show no annual modulation, in conflict with longstanding results from the DAMA experiment.
High-energy X-rays reveal possible missing neutron star formed by the collapse of the famous supernova's progenitor star.