NASA’s Artemis II SLS (Space Launch System) rocket and Orion spacecraft are seen on the pad at Launch Complex 39B, Saturday, Jan. 17, 2026, at NASA’s Kennedy Space Center in Florida.
NASA/Joel Kowsky

As part of the Artemis II wet dress rehearsal, NASA’s Artemis II closeout crew and pad rescue team are en route to Launch Pad 39B. The closeout crew will head to the White Room inside the crew access arm on the mobile launcher and are responsible for securing the Orion spacecraft and ensuring all access points are properly configured before simulated crew ingress operations. 

The White Room is the environmentally controlled area at the end of the crew access arm, providing a clean and safe space for astronauts to enter Orion on launch day. During the wet dress rehearsal, the closeout crew will close the spacecrafts’ hatches, verify hatch seals, check environmental conditions, and confirm all systems are ready for the next steps in the countdown. 

Their work is critical for maintaining safety and readiness as Artemis II moves closer to its first crewed mission around the Moon. 

Stay tuned for more updates and watch live views from Launch Pad 39B as wet dress rehearsal continues.  Though the rehearsal has been counting down to the opening of a simulated launch window at 9 p.m. Mon, Feb. 2, the test could go until approximately 1 a.m. Feb. 3.

A 24/7 live stream of the rocket at the pad remains online, as well as a separate feed to capture wet dress activities. 

Artemis II Wet Dress Rehearsal: Closeout Crew Departs to White Room