Not sure if I've mentioned this free program before, its called 'Orbiter' its a space flight simulator, not a game, a serious program. It really does help if you ARE a rocket scientist. But if like me you are not, theres plenty of documentation and tutorials. Basically this program lets you fly any spacecraft around the solar system and beyond. The default is a near-future delta-flyer, you'll need to practice in that first before moving up to real spacecraft such as the space shuttle. As well as visiting and landing on planets and moons, you can dock with the space station, drop a satellite in orbit, pick up a satellite and bring it back down to earth. Some people like to re-enact missions such as moon landings, or even fictious missions like going to the moon wheel in 2001 and docking. Getting about the solar system uses real physics, not "star wars" physics, you use on-board computers to plot your trajectory to a planet and when to do a burn. Its a steep learning curve, but well worth it. The program is freeware, theres tons of add-ons space craft etc, and a growing community of amateurs involved. You can go to http://orbit.medphys.ucl.ac.uk/ to download it. Also, I've attached a video podcast enclosure to this feed, just click the enclosure link to view this video, its me demonstrating what you can do with this wonderful program.