A large collection of information about and photos of the starts and constellations in the sky.

This resource provides a brief description of the relationship between a neutron star and a pulsar. It details the pulsing rate and death of a pulsar.

This resource contains information about planetary nebulae and their characteristics.

Discusses the formation of the white dwarf and the role this star plays in the formation of a white dwarf supernovae.

For a man whose career involved the entire known universe, John Kraus had a remarkably insular upbringing. He was born and raised in Ann Arbor, Michigan, and earned his bachelor's, master's and doctoral degrees in physics, all at the...