Spectacular Video Shows How Supernova Remnant Cassiopeia A Evolved Since 2000
A new movie of the Cassiopeia A supernova remnant shows how it has evolved over more than a dozen years in X-ray light. NASA’s Chandra…
Smithsonian Astrophysical Observatory
Colossal Collision of Galaxy Clusters Will Form One of the Most Massive Objects in the Universe
A mega-merger of four galaxy clusters in Abell 1758 has been observed by Chandra and other telescopes. Abell 1758 contains two pairs of galaxy clusters,…
“Zoom-Ins” Track and Model Parcels of Gas as They Move Inward Towards the Torus
Scientists aren’t sure how quasars form, how they develop in time, or how (or what) physical processes generate their stupendous energies; but by using a…
Atmosphere of Super-Earth GJ1214b Possibly Includes Abundant Water Vapor
Using the Hubble Space Telescope, astronomers probed the atmosphere around the transiting super-Earth known as GJ1214b and concluded that unless the atmosphere has a thick…