Science ❯ Astronomy ❯ Observational Astronomy

X-ray Astronomy

Chandra X-ray Observatory X-ray Emissions Supermassive Black Holes XMM-Newton Telescope XMM-Newton Spacecraft Einstein Probe Data Analysis 511-keV Emission Line X-ray Telescopes eROSITA Telescope XMM-Newton and XRISM Space Telescopes Chandra Observatory Radio Emissions Ginga Satellite

XRISM Ties Gamma Cassiopeiae’s Extreme X-Rays to a Hidden White Dwarf

The finding confirms a long‑predicted Be–white dwarf pairing, reshaping models of how massive binaries evolve.

Chandra’s 25-Year X‑Ray Timelapse Charts Uneven Expansion of Kepler’s Supernova Remnant

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

Brightest Blue Cosmic Flash Linked to Black Hole Tearing Apart a Massive Star, Studies Find

Real-Time Black Hole Flare Triggers Ultrafast Wind at 20% Light Speed

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