Cassiopeia A Supernova Remnant in Virtual Reality (VR) Chandra X-ray Observatory — December 7, 2018 0 comment Tweet on Twitter Share on Facebook Google+ Pinterest One of the most famous objects in the sky, the Cassiopeia A supernova remnant, is shown in a new virtual reality (VR) application thanks to NASA’s Chandra … source Tweet on Twitter Share on Facebook Google+ Pinterest