9274 Experimental spaceship, the U.S. air force landed after two years in orbit

Experimental spaceship, the U.S. air force landed after two years in orbit



the Official account of the U.S. air force reported that reusable orbital spacecraft X-37B OTV-4 successfully landed on the runway at Kennedy Space center. The U.S. air force said that X-37B OTV-4 was in space more than seven hundred days.

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