universetoday.com
Afterlife of a Supernova - Universe Today
Stars - like people - are born, grow, mature, and die. But out of stellar death comes new life, as matter freshly minted within such stars flies outward to join gases previously boiled off during its hey day. Based on extended Chandra observations of the oldest supernova discovered using X-ray technologies (SN 1970G), astronomers think we might be watching a star in the transition phase between its old life as a giant blue star that went supernova, and its new life as a supernova remnant.