From Mica
a talk given by Dr. Pamela L. Gay, Southern Illinois University Edwardsville, and Astrosphere New Media Association
on January 21, 2012
Dr. Gay talked about how craters are formed, their overall structure, how they're dated, and some outstanding questions about craters... questions which the new CosmoQuest citizen-science project may help resolve.
http://cosmoquest.org/
Media
Slides
Audio Recording