NASA’s Space Launch System has finally reached the pad — although an actual launch is still some ways off. The SLS rocket and the Orion spacecraft it carries arrived at Kennedy Space Center’s Launch Pad 39B for the first time at 4:15AM Eastern today (March 18th) for one last test before the uncrewed (and delayed) Artemis I mission to the Moon. The team will conduct a “wet dress rehearsal” that replicates the mission short of liftoff, including the propellant load, countdown procedures and draining tanks.
The test will help NASA set an exact target launch date for Artemis I. The SLS won’t stay out for very long., though, as the agency plans to roll it back to the Vehicle Assembly Building several days after the test. There, crews will remove rehearsal sensors , top up batteries, add “late-load” cargo and conduct final checks. The rocket will return to the launch pad about a week…
