01: Neutron Stars and Pulsars

In 1967, a strange signal of data was detected by a radio telescope. Pulses of radio emission appeared with astonishing regularity, like a perfectly ticking clock. These pulses were the very first observations of a neutron star, the tiny and dense remnant left behind by the supernova death of an enormous star many times the mass of our own Sun. Explore what neutron stars are. Where do they come from? How do they work? And most important, what can these objects teach us about stellar death, gravity, and our own universe?