This is a set of six web pages, authored and curated by David P. Stern, describing four unconventional methods of accelerating spacecraft. These are using cannons, nuclear power, solar sails and ion rockets....

In this video lecture, Helen Sharman, the first British astronaut, gives an account of her personal experiences on the space station Mir. Using models and film to illustrate key scientific concepts, she discusses the way...

This online training module created by Caltech's Jet Propulsion Laboratory (JPL) discusses the concepts related to deep space missions. Through a series of animations and quizzes within the eighteen chapters, visitors...

This tutorial is part of WebPhysics, a site "devoted to teaching and learning physics with World Wide Web technology." The first lesson teaches visitors about orbital mechanics. The second and third lessons delve into...

This site, created by author Robert Braeuning, features material on orbital mechanics, propulsion, rocket hardware, space centers and missions. It includes definitions of important terms and black-and-white diagrams. The...