NASA’s Artemis 1 moon rocket headed back to the launch pad Tuesday night (Aug. 19) to take a step closer to a landmark lunar mission.
Artemis 1 is an uncrewed test flight of the huge Space Launch System (SLS) megarocket and its Orion spacecraft, and it began the rollout to a Kennedy Space Center launch pad at about 10 p.m. EDT (0200 GMT Wednesday, Aug. 17).
The Orion, stacked atop the rocket, began moving from the KSC’s Vehicle Assembly Building for a journey that will take as long as 11 hours. The crawler carrying the Artemis 1 hardware must make a journey to Launch Pad 39B at roughly 1 to 2 miles an hour (1.6 to 3.2 km/h).
While the rollout is running, you can watch it live on NASA’s website (opens in new tab), NASA TV and the NASA app (opens in new tab). NASA’s webcast began at 3 p.m. EDT (1900 GMT).
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NASA elected to bring the rocket out a full two days earlier than planned. The agency said on its Artemis blog (opens in new tab) that the team finished flight termination system testing, the last major activity required until the rocket was closed out and the final access platforms at the VAB were retracted.
NASA has not released a detailed schedule of the rollout, which is expected to last between 8 and 11 hours depending on weather conditions, road conditions and other technical matters.
Blastoff of the uncrewed mission is scheduled for no earlier than Aug. 29, and will bring the Orion spacecraft around the moon on a test of the vehicle’s system for future human missions. In between will be several webcasts of the science and other tech on board the mission.
NASA hopes to send an Artemis 2 mission to orbit the moon, with people on board, as soon as 2024 with a landing mission, Artemis 3, set for 2025.