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Fourth echelon

Air Force's mysterious X-37B space plane spotted by amateur astronomers

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A global team of vigilant satellite watchers has caught the U.S. Air Force's robotic X-37B space plane on camera as the craft circles Earth on its fourth mysterious mission.  

The unmanned X-37B launched May 20 atop a United Launch Alliance Atlas V rocket from Florida's Cape Canaveral Air Force Station. Details about the current mission — known as Orbital Test Vehicle-4, or OTV-4 — are classified, but the satellite trackers' new observations are shedding some light on the spacecraft's activities.

"It's in a lower orbit than normal … had us confused for a while, as I thought it would be the standard operating orbit," tracker Greg Roberts, who lives in South Africa, told Space.com. "The inclination is also lower than before."

http://www.foxnews.com/science/2015/06/01/air-force-mysterious-x-37b-space-plane-spotted-by-amateur-astronomers/?intcmp=trending

 
 
 

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