第一颗人造地球卫星的发射成功标志着空间新纪元的到来,加快了科学的发展,同时改变了人类对世界的看法。第一次征服了地球引力,而在这之前,只有科普作家能够办到。第一次将人造天体绕地球运转,从而使去月亮和太阳系的可能性成为了现实。卫星-1号(Sputnik-1)以及以后的苏联和美国的卫星,既使开始的几年里,已经取得了有关地球形状、大气层的结构和物理特性等重要数据。以卫星-2 The successful launching of the first artificial Earth satellite marks a new era in space, accelerating the development of science and at the same time changing the way humans view the world. For the first time, the Earth’s gravity was conquered, but only before the science writers could do so. For the first time, moving man-made objects around the earth has made the possibility of going to the moon and the solar system a reality. Sputnik-1 and later Soviet and U.S. satellites, even in the first few years, have produced important data on the shape of the Earth, the structure and physical properties of the atmosphere. With satellite -2