My beloved Celestia astronomy program has been missing from my Linux distribution for a few years. I never dug into how much effort it would take to reinstall. So I thought I might look into it today and found it’s back and easy to install. This program was one of the programs I’d use many years ago when I wanted to show off Linux. It looked cool then…and still does!
Wikipedia says “Well over 10 GB of extensions are available in addition to the base program, produced by an active user community.”
Another nice hi-res demo with music…
https://www.youtube.com/watch?v=yGXBElz_qZk