Impact craters are made when an object or bolide impacts the surface of a planet or satellite. A bolide is any falling body such as a comet or meteorite. Many hands on impact simulation activities are available, and all involve dropping a series of bolides, with different masses, onto a simulated planetary surface. The planetary surface can be dry, for example made out of flour with a dusting of cocoa powder, or wet, such as a muddy composite of dirt or sand.

[A variety of cratering exercises are available. See Craters! ]

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This module was written by Cynthia Phillips, Dept. of Planetary Sciences, University of Arizona, Tucson AZ, and funded in part by the NASA Spacegrant program.

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Galileo Solid State Imaging Team Leader: Dr. Michael J. S. Belton

The SSI Education and Public Outreach webpages were originally created and managed by Matthew Fishburn and Elizabeth Alvarez with significant assistance from Kelly Bender, Ross Beyer, Detrick Branston, Stephanie Lyons, Eileen Ryan, and Nalin Samarasinha.

Last updated: September 17, 1999, by Matthew Fishburn

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