NASA’s Space Launch System (SLS) is ready to fly with its four shuttle-era engines. The rocket, outfitted with the RS-25 engines, recently passed a critical milestone that put the integrated system to ...

CC0 Usage Conditions ApplyClick for more information. Discovery was the third Space Shuttle orbiter to fly in space. It entered service in 1984 and retired from spaceflight as the oldest and most ...

(TNS) — It won’t have any crew, but the U.S. Space Force is set to send the Boeing-built X-37B spacecraft — which looks like a miniature space shuttle — back for a long-duration mission to orbit ...