The X-37B spaceplane touched down on Runway 12 at Vandenberg Space Force Base, California, at 11:22 pm local time Thursday (2 ...

The X-37B military spaceplane has successfully completed its seventh mission after spending 434 days in orbit, marking another significant achievement for the U.S. Space Force. The spacecraft, known ...

The red planet Mars, named for the Roman god of war, has long been an omen in the night sky. And in its own way, the planet’s rusty red surface tells a story of destruction. Billions of years ...

NASA aims to travel to the moon again—and beyond. Here’s a look at the 21st-century race to send humans into space. Private spaceflight is not a new concept. In the United States, commercial ...