The eighth mission of the Boeing X-37B spaceplane is officially on as the vehicle is once again in Earth orbit, conducting secret missions.

Within six months of touching down from a 434-day orbital mission in March, Boeing’s X-37B spaceplane is back in action.

Michelle Parker, vice president of Boeing’s Space Mission Systems unit, said the last X-37B mission broke new ground with autonomous spaceflight. In a statement, she predicted that ship maneuvers without human input will become more important because space is getting more congested.