Each mission had a satellite designed to photograph the surface of Mars from orbit, and to act as a communication relay for the Viking lander that each mission carried.

每次任务都发射一枚具备从火星轨道拍摄火星表面能力的人造卫星，同时充当与海盗登陆者进行联络的中间站。

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The Viking lander missions showed the present surface environment of Mars to be unfavourable for life due to the absence of liquid water, intense UV radiation, and oxidizing soils.

维京登陆任务显示，由于没有水，强紫外辐射，氧化性的土壤，当前火星表面不适合生命生存。

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Cameras strapped on either side of Viking 1's lander helped scientists calculate distances on the surprisingly Earthlike surface of the red planet.

捆在海盗1号另一边的相机帮助科学家来计算此红色行星上的地表距离。

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There were three biology experiments on the Viking lander 1 and Viking lander 2.

NPR: Revisiting the Viking Missions to Mars

When the Viking lander 1 landed on July 20, 1976, it sent back the first pictures from the surface of Mars.

NPR: Revisiting the Viking Missions to Mars

And if we wanted to fly over the Viking lander, we could.

NPR: Revisiting the Viking Missions to Mars