This artists’ impression is of the Mariner 10 mission. Mariner 10, which launched on Nov. 3, 1972, was the first mission to perform an interplanetary gravity assist, using a flyby of the planet Venus to alter its path to meet Mercury. This allowed the spacecraft to meet Mercury on three occasions in 1974 and 1975.
这幅艺术家画的是水手10号的任务。水手10号于1972年11月3日发射升空，是执行行星间引力辅助任务的第一个任务，它通过飞掠金星改变路径与水星相遇。这使得宇宙飞船在1974年和1975年三次与水星会和。
Image Credit: NASA
图片来源:美国国家航空航天局
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