Flight controllers also plan to try to get global surveyor to contact one or both of NASA s roving geology stations spirit and opportunity which are located on opposite sides of Mars equator.

飞行控制人员还计划尝试联络全球测量一方或双方美国宇航局巡回地质学站精神与机会，让双方都位于火星的赤道。

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It plans to launch the first Mars probe by 2020 to carry out orbiting and roving exploration.

2020年发射首颗火星探测器，实施环绕和巡视联合探测。

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China intends to execute its first Mars exploration operation, and grasp key technologies for orbiting, landing and roving exploration.

实施中国首次火星探测任务，突破火星环绕、着陆、巡视探测等关键技术。

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In his book "Roving Mars, " Squyres recalls the first time he saw Pancam pictures on Mars.

NPR: Mars Rover Marks Second Anniversary of Landing

" Nobel Laureate Steven Weinberg calls manned missions "an incredible waste of money" and argues that "for the cost of putting a few people on a very limited set of locations on Mars we could have dozens of unmanned, robotic missions roving all over Mars.

CNN: Mars can wait. Oceans can't

Even if the delicate digital hardware running these machines keeps going, and even if they are the smartest roving robots this side of Mars, navigating through the scrub, dust and rock of the Mojave desert represents a complex challenge.

ECONOMIST: MONITOR: Robots, start your engines | The