Space Exploration By kayneo220 Oct 4, 1957 Sputnik Launches Sputnik InformationUSSR launches Sputnik 1 Apr 11, 1961 First Person in Space Yuri Gagarin ArticleYuri Gagarin is the first human to enter space. Feb 20, 1962 Around the world A timelineMercury Friendship 7 lifts off with John H. Glenn, Jr., the first American in orbit, and orbits the Earth three times Jul 14, 1965 Mars Exploration Pictures of MarsPictures of Mars by Mariner 4 Jul 20, 1969 Niel Armstrong - One Small Step.... Video
