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later in 1950 space explortation began.
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The saviet union was the greatest rival to the united states in politics and military power
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in the 1960s a human entered space for the first time.
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In 1961 the saviets launched the first human into space.
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In 1969 three american sdtronauts circled the moon aboard Apollo II.
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In the 1970s to the 1980s both the united states and the saviet union placed space stations into orbit
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The united states and 15 other countries began planning the construction of the international space station
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In 2003 the european space agency launched an unpiloted space craft into orbit the moon.
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in 2004 the united states announced a plan to establish a permsnent colony of people on the moon.
