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Associated Press
In this undated image provided by NASA the Orbital Science Corporation's "Stargazer" plane is shown releasing its Pegasus rocket. NASA's NuSTAR will also launch from a Pegasus carried by the Stargazer plane. NASA's NuSTAR mission is scheduled to launch from Kwajalein Atoll in the central Pacific Ocean on June 13, 2012 no earlier than 8:30 a.m. PDT (11:30 a.m. EDT). The observatory, which will hunt for black holes and other exotic objects using specialized X-ray eyes, will be launched from a Pegasus XL rocket carried by an Orbital Science Corporation L-1011 "Stargazer" plane. (AP Photo/Orbital Science Corporation via NASA)

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