History of Space Exploration By izzytimetoast Oct 4, 1957 Sputnik 1, first object in space Jan 31, 1958 Explorer 1 launched Jul 29, 1958 NASA is formed Apr 12, 1961 Yuri Gagarin, first human in space May 5, 1961 Alan Shepard, 1st US citizen in space Feb 20, 1962 John Glenn, first US citizen to orbit Earth Jul 20, 1969 Armstrong and Aldrin first men on the moon Apr 12, 1981 first American space shuttle is launched Jan 28, 1986 Challenger explodes Nov 2, 2000 Human habitation in ISS begins
