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A thin orange line: The India-Pakistan border from space

Clusters of yellow lights on the Indo-Gangetic Plain reveal numerous cities large and small in this astronaut photograph of northern India and northern Pakistan. Of the hundreds of clusters, the largest are the capital cities of Islamabad, Pakistan, and New Delhi, India. (For scale, these metropolitan areas are approximately 700 kilometers or 435 miles apart.) The lines of major highways connecting the cities also stand out. More subtle, but still visible at night, are the general outlines of the towering and partly cloud-covered Himalayas to the north (image left). (more…)