Fifty years ago, two American astronauts became the first humans to walk on the Moon. But before humans had left Earth, animal astronauts had blazed a trail into space. VOA’s Kerry Hensley has more.
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Fifty years ago, two American astronauts became the first humans to walk on the Moon. But before humans had left Earth, animal astronauts had blazed a trail into space. VOA’s Kerry Hensley has more.