Saturday, 20 May 2017

Monogram Cassiopeia, Milky Ways Youngest Supernova Wristwatches

Monogram Cassiopeia, Milky Ways Youngest Supernova Wristwatches
Galaxies, Stars and Nebulae series: This extraordinarily deep Chandra image shows Cassiopeia A (Cas A, for short), the youngest supernova remnant in the Milky Way. New analysis…