The first living creature to make an orbital spaceflight around the Earth was the dog Laika, aboard the Soviet spacecraft Sputnik 2 （史普尼克2號） on 3 November, 1957. Soviet rocket scientists wanted to send animals to space to better understand what launch （火箭發射）, microgravity （微重力） and other aspects of spaceflight might do to a human body. So they collected stray dogs （流浪狗）to conduct experiments beforehand. Who ...Read More
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