Incoming Resources
- Impact!, asteroids and the science of saving the world, Elizabeth Rusch ; photos by Karin Anderson
- Comets, meteors, and asteroids, voyagers of the solar system, by Ellen Lawrence ; consultants: Suzy Gazlay, MA, recipient, Presidential Award for Excellence in Science Teaching, Kevin Yates, Fellow of the Royal Astronomical Society
- Comets, asteroids, and meteorites, by Roy A. Gallant