Transcript: Every star in the night sky will one day exhaust its nuclear fuel and die. A battle rages within the heart of every star between the inward force of gravity and the outward pressure caused by energy release from nuclear reactions. This is a battle that gravity will always win in the end, and the mode of a star’s death depends, as its life does, on its mass. Low mass stars will die by having their material entombed in a cooling ember, and high mass stars will die in a last pyrotechnic flourish to create and spit heavy elements out into the space between stars and leave a collapsed stellar remnant.