The X-37B, the Air Force’s unmanned “mini-space shuttle,†has launched into orbit for a third time  and once again what it actually does in space remains a big mystery. One of the few things known about the space plane’s classified  missions is that it can...
The X-37B, the Air Force’s unmanned “mini-space shuttle,†has launched into orbit for a third time  and once again what it actually does in space remains a big mystery. One of the few things known about the space plane’s classified  missions is that it can...
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