Watch NASA’s STP-2 technology briefing

A bad input to the Ariane 5 rocket’s guidance system that was missed during pre-launch quality control checks caused the launcher to deviate from its expected flight path and place two commercial communications satellites in the wrong orbit Jan. 25, Arianespace announced Friday.

A full-size prototype of SpaceX’s heavy-lift Starship launch vehicle soared high into the atmosphere Wednesday in a spectacular test flight over South Texas, and successfully guided itself to a beachside landing site before exploding at touchdown. Elon Musk, SpaceX’s founder and CEO, hailed the nearly seven-minute test flight as a success.

A robotic U.S. military spaceplane surpassed 719 days in orbit Monday, setting a new record for the longest flight of the Air Force’s winged X-37B orbiting experiment platform nearly two years after launching from Florida on a SpaceX Falcon 9 rocket.