Our best model of the cosmos has a glaring mathematical problem, but we may have found an answer.

Space domain awareness. Non-Earth imaging. Orbital warfare. The language is new — but the mission is familiar: know where your enemy is, know what they can do, and be ready. At the Space Symposium in ...

The U.S. Space Force's X-37B space plane is set to launch its eighth mission from Kennedy Space Center. The mission, designated USSF-36, will focus on testing laser communications and a new navigation ...

The X-37B's eighth orbital mission will start with a liftoff atop a SpaceX Falcon 9 rocket. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The U ...

This screenshot from CCTV (China Central Television) shows China’s first moon rover Yutu, or Jade Rabbit, in an image taken by the camera on the Chang’e 3 moon lander, Dec. 15, 2013. China does not ...

Working from computer screens in chilly rooms, the force has emerged as a vital part of America’s war machine amid increased competition from China and Russia. It looked more like a satellite ...