剧情简介：Humanity has been flying into orbit for almost 50 years, beginning with the launch of Sputnik 1 on 4 October 1957. In the centuries before, people all over the world had engaged in a virtual exploration of space through astronomical observation aided by astounding scientific and technological advances. In the period since, more than 6,000 satellites have been launched into Eart...(展开全部)
作者：Roger D. Launius
出版社：Smithsonian Books
ISBN：9781588346377
