This site from National Aeronautics and Space Administration provides information about aerogel, a material used by the Stardust probe to trap particles from the Comet Wild 2. The collection strategies, the unique...

This collection of teaching tools, authored by the Space Telescope Science Institute (U.S.) includes lithographs, fast facts, graphic organizers, question and answer sessions, and online explorations on an array of...

This collection of astronomy lesson plans and experiments from across the internet was developed by Reach Out, a center linking University of Michigan and community mentors with children and teens. Topics covered include...

This resource covers the general features of comets, such as their orbit, head, coma and tail; the comets Hyakutake and Hale-Bopp; Halley's comet; collisions of comets with other bodies; and the possibility of small...

Comets have fascinated humans for hundreds of years, and most recently with the idea of creating a "deep impact" upon a comet in order to study the interior composition and makeup of these bodies. With this scientific...