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In 1957, a stray dog became the first animal in orbit: What Laika's lonely mission taught scientists | World News Edit Profile Following Sign out Get App
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1957年，一只流浪狗成为首个进入轨道的动物：莱卡的孤独任务教会了科学家什么In 1957, a stray dog became the first animal in orbit: What Laika's lonely mission taught scientists
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