绪言1975火星 Viking 计划表明这个国家直接探查另一个行星表面的第一次努力。在 Viking 登陆机的90天使用期间内,多种多样的科学实验将指导考查行星并寻找生物的痕迹。将用一对 Itek Corporaion forMartin Marietta 设计和制造的传真摄影机探查火星表面种种形态和大气特征。这些摄影机重量是轻的而紧凑,并且是设计为给出 INTRODUCTION The Mars Viking plan shows the country’s first effort to probe the surface of another planet directly. During the 90 days of use of the Viking Landing Aircraft, a wide variety of scientific experiments will guide you in examining the planets and looking for creatures. A variety of morphological and atmospheric features on the surface of Mars will be explored using a pair of fax cameras designed and manufactured by Itek Corporaion forMartin Marietta. The weight of these cameras is light and compact, and is designed to give