Space exploration timeline. By josue. 1900. A scientist named tisolkovsly started testing rockets.
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Soviet cosmonaut Yuri Alekseyevich Gagarin orbited the Earth on board Vostok 1 on this day in 1961. The historic event was a significant victory for the Soviet Union in the Cold War space race with the United States, which had scheduled its first manned space flight for May of that same year. Twenty years later to the day, in 1981, the United States reached another milestone in the space program by launching the first reusable manned spacecraft to travel into space, the space shuttle Columbia