Nights of the Living Dead — What Stars Leave Behind

Stars leave interesting messes after they die: diamond-studded puffballs, neutron stars, and black holes. We explore an example of each in June’s night skies. The white dwarf star in the AE Aquarii system spends its retirement siphoning gas from a closely-orbiting companion. Casey Reed / NASA Stars live long lives, from supergiant powerhouses that exhaust Read More …