The U.S. military's classified mini space shuttle has returned to Earth after circling the world for 434 days.
The 1950s and 1960s were the golden age of space exploration. The U.S. and the Soviet Union were locked in a race to the ...
The U.S. military's classified mini space shuttle has returned to Earth after circling the world for 434 days CAPE CANAVERAL, Fla. -- The U.S. military's classified mini space shuttle returned to ...
This photo provided by United States Space Force the X-37B Orbital Test Vehicle-7 (OTV-7), the U.S. Space Force’s dynamic unmanned spaceplane, successfully deorbited and landed at Vandenberg ...