NASA chief concerned China may deny access to parts of South Pole
摘要
NASA局长艾萨克曼对中国月球南极探测计划表示关切。此前中国将嫦娥七号发射推迟至明年年初，该任务原定前往沙克尔顿陨石坑。艾萨克曼称美方“可能躲过一劫”。月球南极尤其是沙克尔顿陨石坑边缘存在永久阴影区，可能蕴藏水冰等资源，具有重要探测价值。
Last month, China delayed the launch of an ambitious robotic mission to the South Pole of the Moon, Chang’e 7, until early next year. The country did not provide a detailed explanation for the schedule slip, but it was welcomed by NASA Administrator Jared Isaacman.
"They are targeting the exact same location on lunar South Pole," Isaacman said Wednesday evening at the Off World conference in Houston. "We may have dodged a bullet with the Chang'e 7 mission a couple of weeks ago because that would have gone to the Shackleton crater."
Much of the lunar surface is pretty barren, but the South Pole, and the Shackleton Crater in particular, offers some of the most coveted real estate there. That's because the high rims of the crater create permanently shadowed regions known as “cold traps,” where it’s thought that water (in the form of ice, of course) and other useful materials may have accumulated over billions of years.
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