The U.S. military's top-secret X-37B space plane has returned from a mysterious 434-day mission in orbit. The enigmatic ...

The United States Space Force’s secretive X-37B space plane touched down to earth on Friday after spending 434 days in orbit ...

"The successful execution of the aerobraking maneuver underscores the U.S. Space Force’s commitment to pushing the bounds of ...

The X-37B spacecraft’s latest mission was shorter than the last but tried several new maneuvers and approaches during its ...

The U.S. military's classified mini space shuttle returned to Earth on Friday after circling the world for 434 days.

The U.S. Space Force's robotic space plane X-37B returned to Earth has returned to Earth after spending more than 434 days in orbit on a classified mission. This was the seventh mission for the X ...

Explore the results of the seventh mission of the U.S. Space Force reusable spacecraft, X-37B, with its return to Earth ...

Long before the first rays of sunlight brushed the California horizon, an extraordinary homecoming took place. The U.S.

In 2006, the Air Force announced the development of its own variant of the space plane, known as the X-37B, designed to operate with an orbital speed of nearly 17,500 mph for up to 270 days.