The Crab Nebula, remnants of the supernova which was first noticed around 1050 AD In massive stars, fusion carries on till the iron core has developed so big (more than one.4 M☉) that it can no more help its personal mass. This Main will abruptly collapse as its electrons are https://dominickk78s9.thenerdsblog.com/42033298/the-basic-principles-of-resort