NASA Releases Gorgeous Time-Lapses Of Supernovae Showing 20 Years In 20 Seconds
NASA has release two unexampled moving picture showcasing changing observations of two well - known source in the sky : Cassiopeia A and the Crab Nebula . Both headliner are the remnant of monolithic whiz going supernova in our coltsfoot . The time - lapse videos condense 20 yr of the Chandra X - beam telescope ’s data into just 20 dramatic second gear . The plosion that created theCrab Nebulaappeared in our sky almost 1,000 geezerhood ago in 1054 ....