Science ❯ Astronomy ❯ Observational Astronomy

NASA

Chandra X-ray Observatory James Webb Space Telescope Neil Gehrels Swift Observatory ESA Fermi Gamma-ray Space Telescope ATLAS Survey NIRCam and NIRSpec Chandra X-Ray Observatory

New Chandra Image Reveals 'Champagne Cluster' as Two Merging Galaxy Clusters

A new Chandra–optical composite highlights a rare cluster merger valuable for dark‑matter tests.

Chandra Finds Early Quasar’s Black Hole Growing Beyond the Eddington Limit