Incoming Resources
- An intimate look at the night sky, Chet Raymo
- Smithsonian atlas of space exploration, Roger D. Launius & Andrew K. Johnston
- Firefly guide to stars and planets, Sir Patrick Moore
- The planets, the definitive guide to our solar system, Heather Couper, Robert Dinwiddie, John Farndon, Nigel Henbest, David W. Hughes, Giles Sparrow, Carole Stott, Colin Stuart