Sls

• NASA's Space Launch System (SLS) rocket for the Artemis 2 mission began rollout from the Vehicle Assembly Building to Launch Complex 39B on March 20, 2026, targeting first motion at 8 p.m. EDT (0000 GMT). • The four Artemis 2 astronauts entered quarantine at Johnson Space Center in Houston on March 18 at 6 p.m. EDT, limiting exposure before heading to Kennedy Space Center five days prior to launch. • Rollout addresses a helium flow issue in the rocket's upper stage, with teams planning to install access platforms, replace batteries in the flight termination system, and retest components upon return to the VAB if needed.

• NASA's Space Launch System (SLS) rocket for Artemis 2 began rollout from the Vehicle Assembly Building to Launch Complex 39B on March 19, targeting first motion at 8 p.m. EDT (0000 GMT March 20) for a 12-hour, 4-mile journey. • The rollout follows repairs for a helium flow issue in the upper stage, battery replacements in the flight termination system, and two prior wet dress rehearsals marred by leaks since the initial January 17 rollout. • The four Artemis 2 astronauts entered quarantine on March 18 at Johnson Space Center, limiting exposure for a week before heading to Kennedy Space Center five days before the planned April 1 launch.