A double cosmic explosion could be the first known ‘superkilonova’
The blast may have been a kilonova — a type of neutron star merger — in the wake of a more traditional supernova.
Author: Lisa Grossman
A newly spotted asteroid spins faster than any of its size ever seen
Among the first finds from the Vera C. Rubin Observatory, the discovery hints at a population of exceptionally strong asteroids.
Betelgeuse’s buddy leaves a wake in the giant star’s atmosphere
The wake left by Betelgeuse’s companion could solve a decades-old mystery of its strange brightness cycles.
Galaxies with ‘hoop skirts’ are more common than we thought
The discovery of thousands more galaxies with stars ringing their main disks could help astronomers study galactic evolution more generally.
First maps of the sun’s outer boundary may help predict solar storms
NASA’s Parker Solar Probe has mapped the shifting boundary between the sun and the rest of the solar system.
These space stories made us look up in 2025
Space is always inspiring and 2025 was no exception, with finding Betelgeuse’s buddy, debuting a prolific survey telescope and more.