Photos: Delta 4-Heavy with Orion on eve of launch

Artemis 2 commander Reid Wiseman, Victor Glover, Christina Koch and Canadian astronaut Jeremy Hansen, in pre-flight medical quarantine at the Johnson Space Center in Houston, had hope to fly to Florida Tuesday to begin final preparations for launch. Instead, they will remain in Houston and rejoin family, friends and co-workers.

The four RS-25 engines at the bottom of NASA’s first Space Launch System core stage shut down about a minute into a ground test-firing Saturday that was supposed to last more than eight minutes.

The hatch issue caused NASA to modify its prelaunch preparations within the Vehicle Assembly Building but it continues to target an early February launch of the mission to carry four astronauts on a loop around the Moon.