As a planetary astronomer, Dr. Larry Lebofsky has scientific expertise in a number of areas, in particular, observational studies of terrestrial planets, planetary satellites, and small solar system bodies. In addition, for the last 18 years, he has been heavily involved in all areas of E/PO. He has made hundreds of hands-on presentations to thousands of elementary and middle school students. He has helped design and teach numerous professional development workshops for hundreds of K-12 teachers and Girl Scout leaders and developed hands-on, inquiry-based activities that are being used by thousands of teachers around the United States as well as in other countries and co-write a monthly newsletter that goes to more than a hundred Girl Scout leaders and educators. He has also taught at the undergraduate level and have been involved in the design and teaching of classes for future teachers. In addition to this, he is also Co-editor of Meteorite magazine which gives him direct contact with nearly a thousand professional meteoriticists, meteorite dealers and collectors, as well as others who are just interested in meteorites.