Celestia

Celestia is very cool.

  by syphax

The graphics are really amazing- probably the best I've seen in an open source application. And it runs on Windows/Mac/Linux (I've used the first two, so far...)!

I find the controls a little opaque, but I haven't spent a lot of time RTFM. My 5-year-old twins have recently developed an interest in space (they are upset at Michael Collins didn't get a turn on the Moon), so it's great fun to zoom around the solar system with ... [More] them.

The Mac port seems a little unstable (it crashes from time to time), but frankly it's more stable than Google Earth has been for me. [Less]

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