在太阳系中漫游的宇宙飞船当其靠近地球作低空飞越时,会加上一个额外速度。
Such fly-bys give spacecraft a whip-crack of extra speed【3】 on their tour through the solar system.
它的第二次登月计划将是在2016发射“月船二号” 漫游者,将“太阳神-1”低空飞越太阳的任务定在2018年。
Its second lunar mission will land the Chandrayaan-2 rover in 2016, and the Aditya-1 fly-by of the sun is set for 2018.
NASA的伽利略号太空船在1996年和1997年低空飞越这颗木星的第二大卫星,他们发现木卫四的磁场在不断变化,这意味着存在电流。
NASA's Galileo spacecraft did a fly-by of Jupiter's second largest moon in 1996 and 1997 and found that Callisto's magnetic field varied, indicating currents.
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