The  surface maps for the Earth and Moon were prepared by

James Hastings-Trew  http://gw.marketingden.com/planets/planets.html and
Constantine Thomas   http://www.evildrganymede.demon.co.uk/render/render_f.htm

See also the work of Bj\"orn J\'onsson. http://www.mmedia.is/~bjj

The galaxy background images were created using the  Galaxy package
written by Chris Colefax.

http://www.geocities.com/ccolefax/galaxy.html
