A burst seen by NASA’s Swift in 2016 opened with a flash typical of colliding neutron stars, then four minutes later produced one typical of a collapsing star. A new Nature Astronomy study argues that should not happen.
The Psyche spacecraft has settled into almost nonstop electric thrust after its Mars flyby. A push about as heavy as an AA battery will carry it to a metal-rich asteroid by 2029.
Webb has found methane in interstellar comet 3I/ATLAS carrying more deuterium than any methane in the Solar System, pointing to ice that formed in a cold, ancient cloud.
A new study matches the stars of Van Gogh’s The Starry Night to the Hyades cluster and dates the painted sky to a dawn around 22 July 1889, not June.
