The Planets -Learn about the planets in our solar system. Your Weight there - Enter your weight at this site and to see how much you would weigh on other planets, moons, or even stars. Center for Mars Exploration Information on past and future NASA missions to explore Mars. How to become an astronaut Application information and requirements for the astronaut program. The Space Calendar A calendar of space-related activities and anniversaries for the coming year.
Space colonies Find out about living in orbit.
You will find neat pictures, and be able to use avirtual telescope. A children's interactive adventure though our solar system. Guide Arty and his alien friend Greg to the many sites of our solar system. A site for the young Astronomer. Starter guide for beginning astronomers tells how to use a telescope and a star chart.