Astronomy in Action Videos: written by Dr. Stacy Palen and filmed on location; edited by Zenergy Films
AstroTour animations: Second Avenue Software
Interactive Simulations: Dr. Kevin Lee, University of Nebraska-Lincoln
Site Editor: Rob Bellinger
Editorial Assistant: Liz Vogt
Site Design: Patrick Cartelli

About Norton:

W. W. Norton & Company has been independent since its founding in 1923, when William Warder Norton and Margaret D. Norton first published lectures delivered at the People's Institute, the adult education division of New York City's Cooper Union. The Nortons soon expanded their program beyond the Institute, publishing books by celebrated academics from America and abroad. By mid-century, the two major pillars of Norton's publishing program-trade books and college texts-were firmly established. In the 1950s, the Norton family transferred control of the company to its employees, and today - with a staff of 400 and a comparable number of trade, college, and professional titles published each year - W. W. Norton & Company stands as the largest and oldest publishing house owned wholly by its employees.