Spaceflight Simulator is a game about space explorations. It is about building your own rocket, and going out to explore and see what is out there, all while following real-life physics. You can explore a realistically scaled universe, with planets up to hundreds of kilometers in size and millions of kilometers of space between them.
SkyChart III is a planetarium and telescope control program that shows the sky from any location, past or future, on Earth or beyond.
