人类要实现到太阳系以外太空遨游的梦想在以后的几十年内还不大可能 ,但在此其间人类将竭尽全力在发射运载火箭、建立国际空间站和寻找空间能源等方面有所突破。美国会支持“太空人”计划吗？这在反对者与支持者双方之间引发了一场激烈的争论。反对方指出载人的空间活动代价过 It is unlikely that humankind’s dream of making space trips outside the solar system in the decades to come will be possible, but in the meantime mankind will make every effort to make a breakthrough in launching launch vehicles, establishing an international space station and in finding space energy. Will the United States support the “astronaut” program? This caused a fierce debate between opponents and supporters. The opponents pointed out that the manned space activities cost too much