This New York Times piece still leaves us guessing about the mission of the X-37B space plane, which the U.S. Air Force launched in April from Cape Canaveral, Fla., aboard an Atlas 5 rocket under a veil of secrecy. Amateur skywatchers tracking the X-37B’s orbit suspect that since it passes over the same spot on the ground every four days, and over some of the world’s hotspots, it likely is a prototype reusable surveillance spacecraft.
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