A few slow moments, but impressive and cool as hell. In the application, Celestia, you can fly around to planets and stars, see orbits, etc. And each star or planet or whatever has a ton of information. Rod lectured us on luminosity. Galen let us know that Viga is the coolest moon of Neptune.
This presentation generated the best quote from barcamp stanford:
Audience: Hey Rod, what are those green lines?
5 year old kid: Those green lines? Those are curved space-time.
I could only lie there on the ground and whimper, that was so cool.
and the next best quote:
Galen: Can we see Uranus?