For the past 23 days, the Space Launch System (SLS) moon rocket has been more monument than machine, standing 32-stories tall on launch pad 39B at the Kennedy Space Center, the most conspicuous object for miles around as it towers over the flat Florida landscape. On Augคำพูดจาก ทดลองเล่นสล็อต. 29 and again on Sept. 3, the rocket was supposed to take off on an uncrewed mission around the moon—kicking off NASA’s Artemis program, which aims to have Americans back on the lunar surface by 2026. Both launches came to nothing as serial technical glitches kept the engines quiet and the hardware motionless. But engineers are hardly giving up.

As NASA reports, work i…