(三)美国的空间探测为探索宇宙奥秘,发展宇宙科学,促进航天技术发展,同时也为了同苏联开展太空竞争,美国同前苏联几乎是同时开展了月球、行星和行星际探测。1.月球探测美为给阿波罗载人登月做准备,先后研制和发射了徘徊者号、勘测者号、月球轨道器号等探月器,尔后进行了载人登月探测。徘徊者号从1961年8月到1965年 3. Space Exploration in the United States In order to explore the mysteries of the universe, develop cosmic science and promote the development of space technology, as well as to conduct space competition with the Soviet Union, the United States conducted lunar, planetary and interplanetary exploration almost simultaneously with the Soviet Union. 1. The moon exploration beauty In order to prepare Apollo manned lunar landing, has developed and launched the Prowler, the surveyor, the lunar orbiter and other lunar probe, and later conducted a manned lunar exploration. Prowler number from August 1961 to 1965