Among the first finds from the Vera C. Rubin Observatory, the discovery hints at a population of exceptionally strong asteroids. More

The blast may have been a kilonova — a type of neutron star merger — in the wake of a more traditional supernova. More

The wake left by Betelgeuse’s companion could solve a decades-old mystery of its strange brightness cycles. More

The discovery of thousands more galaxies with stars ringing their main disks could help astronomers study galactic evolution more generally. More

The James Webb Space Telescope detected an atmosphere on a lava-covered exoplanet, evidence that small planets close to stars can have atmospheres. More