Since the dawn of spaceflight, advocates of a robust space effort have argued that human activity beyond Earth makes a significant difference in everyday life.

In 1958, mankind's centuries-long flirtation with space flight became a torrid love affair. For a decade, tens of millions of people were enraptured -- first, b

Using interviews with and writings by astronauts and cosmonauts, discusses how viewing the Earth from space and from the moon affect space explorers' perception