Universe

New measurements from Japan’s Subaru telescope have helped researchers study the matter-antimatter asymmetry problem

Astronomers are piecing together the final moments of supernova 2023ixf and learning more about it than any other in recent history

Voracious black holes feeding on matter in the early universe display the curious spacetime phenomenon known as time dilation

Earth-based analogs are opening new frontiers in studies of the superdense interiors of neutron stars

Astrophysics reminds us that earthly beauty has stellar origins

The Euclid mission will probe dark energy and dark matter like never before, setting the stage for an international, multiobservatory push to solve some of the universe’s deepest mysteries

The disk of our galaxy was long thought to produce these ghostly high-energy particles, but they haven’t been detected until now

Observations from the James Webb Space Telescope suggest that TRAPPIST-1 c, the second world in a seven-planet system, lacks an atmosphere

Bold new simulations suggest the James Webb Space Telescope might be able to distinguish between competing dark matter models by studying primordial dwarf galaxies

Telltale evidence gathered by the James Webb Space Telescope suggests we’re closer than ever before to finding elusive Population III stars

After years of downtime for upgrades, the world’s premier gravitational-wave observatories are coming back online with big hopes for transformative discoveries

Solving a notorious quantum quandary could require abandoning some of science’s most cherished assumptions about the physical world