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Northrop Grumman's L-1011 Stargazer aircraft is at the hot pad at Vandenberg Air Force Base in California on May 26, 2018. Preparations are underway to attach the company's Pegasus XL rocket, containing NASA's Ionospheric Connection Explorer (ICON), beneath the aircraft. The explorer will launch on June 15, 2018, from Kwajalein Atoll in the Marshall Islands (June 14 in the continental United States). ICON will study the frontier of space - the dynamic zone high in Earth's atmosphere where terrestrial weather from below meets space weather above. The explorer will help determine the physics of …
