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The third stage of the Orbital Sciences Pegasus XL rocket is bei
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At Vandenberg Air Force Base in California, the third stage of the Orbital Sciences Pegasus XL rocket is being mated to the AIM spacecraft, at right. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere.
NASA Image and Video Library’s own descriptionCredit lineThe third stage of the Orbital Sciences Pegasus XL rocket is bei. NASA/KSC, 2007-04-03. Public domain. ID: KSC-07PD-0991.