The document summarizes key events in the history of the US space program from 1965 to 1999. It describes the debut of the Saturn 5 moon rocket in 1967, the first American spacewalk by Edward White in 1965, Eileen Collins becoming the first woman pilot and commander of a US shuttle mission in 1995 and 1999, and the Challenger explosion that killed its 7 crew members in 1986 due to a fuel leak.