快猫短视频

Spectacular first pictures from NASA鈥檚 Chandra X-ray Observatory show the
telescope is alive and well. Launched in July by the space shuttle Columbia,
Chandra can view X-rays from very hot objects such as quasars and the gas
falling into black holes. The first image from Chandra has revealed a bright
source of X-rays鈥攑ossibly a dense neutron star鈥攁t the centre of
Cassiopeia A, a supernova remnant. 鈥淯ntil now, nobody鈥檚 been able to find a
point source,鈥� says Harvey Tananbaum of the Smithsonian Astrophysical
Observatory in Cambridge, Massachusetts. 鈥淣ow we have at least a candidate.鈥�