Dead Stars That Won't Sit Still: The Astonishing Science of Neutron Stars
When a massive star dies in a supernova explosion, it sometimes leaves behind a tiny, impossibly dense remnant called a neutron star — and these things are anything but quiet. Spinning hundreds of times per second and packed with more mass than our Sun crammed into a city-sized ball, neutron stars are the universe's most extreme physics labs. Here's why scientists can't stop studying them.