USAs Northeast Megalopolis from Space . ... Credit Copyright: NASA , International Space Station Explanation: Can you identify a familiar area in the northeast USA just from nighttime lights? ... This Northeast megalopolis of the USA contains almost 20 percent of the people of the USA but only about 2 percent of the land area. Also known also as the Northeast Corridor and part of the Eastern Seaboard , about 10 percent of the world's largest companies are headquartered here. ...