Photos: Gantry rolled back to reveal Orion

NASA managers said Friday they hope to know within a month or so whether it might be feasible — or advisable — to put two astronauts on board the first test flight of a huge 322-foot-tall Space Launch System super booster scheduled for its maiden launch late next year.

The Orion spacecraft slated to fly around the moon on an unpiloted mission next year has arrived back at the Kennedy Space Center following an environmental test campaign in Ohio, ready for a series of final checkouts before officials pause launch preparations this summer to await readiness of NASA’s Space Launch System.

A three-minute test flight Tuesday morning over Cape Canaveral will help ensure NASA’s Orion crew capsule — the vehicle being built to carry astronauts back to the moon — can safely escape from a catastrophic failure on launch.