The star that exploded like a nuclear bomb still raises questions half a century later
What happened after the thermonuclear explosion? binary star System observed approximately 3,400 light-years away Hubble space telescope. HM Sagittae, or HM Sge for short, is a system known as the symbiotic system. white dwarf feeding on a friend red giant star. The stolen material forms an accretion disk orbiting the white dwarf. If too much… Read More »