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On this day in space! Aug. 13, 2014: Game-changing WorldView-3 Earth-observing satellite launches to orbit
WorldView-3 地球观测卫星。
'A worrying snapshot': Satellite image shows large patches of open water less than 40 miles from the North Pole
来自 NASA Worldview 的一张图像显示,由于全球变暖,北极海冰变得多么脆弱,8 月 29 日,在北极附近可以看到大片开阔的水域。