I looked up this old thread as a related one from the Wreck of the Shenandoa thread, and realise that there's actually new info for this: Prometheus Music has released "To Touch the Stars," the National Space Society CD mentioned above. They're at:

www.prometheus-music.com

(Sorry, the "Make a link" thingie didn't seem to work.)

Anyway, it has The Christine Lavin song mention above about the moon, as well as a bunch of other really fun things.