Jeffrey Bennett is an astrophysicist and educator who proposed the idea for and helped develop the Voyage Scale Model Solar System -- the first science-oriented exhibit approved for permanent installation on the National Mall in Washington, DC. He is the lead author of best-selling college textbooks in four distinct disciplines: astronomy, mathematics, statistics, and astrobiology. He lives in Boulder, Colorado. Alan Okamoto is a children's book illustrator and a space artist who has done commissioned work for the Air Force, numerous aerospace corporations, and college textbooks. He lives in Lodi, California. Michael K. Carroll is a Professor of History at Grant MacEwan University. He is also the author of Pearsons Peacekeepers: Canada and the United Nations Emergency Force, 1956-1967.