NASA-JAXA XRISM Mission Sees Pulsar Gathering Companion’s ‘Wind’
Using data from the Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) observatory, astronomers have directly observed a giant star’s outflow,More
NASA’s Hubble Spots an Out-of-Sync Galaxy
Though the spiral galaxy in this new image from the NASA/ESA Hubble Space Telescope seems serene, it hides a chaotic secret. This galaxy is NGC 4698,More
APOD: 2026 September 18 – Messier 33: The Triangulum Galaxy
APOD Science APOD APOD: 2026 September 18 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD AstronomyMore
Summer Goes Out With a Heat Dome
Temperature records toppled across the central and southern U.S. as the autumnal equinox approached.