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It was an Earth satellite that started the space race between Russia and the United States. Russia sent Sputnik 1 into space in 1957, and the U.S. responded with Explorer 1 in 1958. In this high-interest title, reluctant readers will learn all about the machines that first signaled the space age.
It was an Earth satellite that started the space race between Russia and the United States. Russia sent Sputnik 1 into space in 1957, and the U.S. responded with Explorer 1 in 1958. In this high-interest title, reluctant readers will learn all about the machines that first signaled the space age.
