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NASA Delays SLS Wet Dress Rehearsal a Second Time

The Artemis I team is stopping to take every precaution for the rocket’s final major test.

A view of the Artemis I Space Launch System (SLS) and Orion spacecraft just before sunrise at Launch Complex 39B at NASA’s Kennedy Space Center in Florida. [File photo courtesy: NASA]
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Key Takeaways:

  • NASA's Artemis I wet dress rehearsal was halted twice due to technical issues, including a liquid oxygen temperature limit and a core stage vent valve found to be manually closed.
  • Despite these setbacks, significant test objectives were accomplished, and mission managers expressed confidence in resolving the problems and completing the rehearsal.
  • Artemis I is an uncrewed test flight, serving as a critical step in NASA's broader program to return humans to the Moon, with crewed missions aiming to land the first woman and person of color by 2026.
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NASA once again halted its Artemis I Space Launch System (SLS) wet dress rehearsal Monday evening—the second time this week.

Previously, the rocket encountered a temperature limit issue that paused the countdown for several hours on Sunday. The rocket’s propellant, liquid oxygen, is an extremely cold liquid that must be maintained at minus 297 degrees Fahrenheit.

Jeremy Kariuki

Jeremy attained his bachelor's in journalism and emerging media from Kennesaw State University. He also served in the Georgia Air National Guard as a C-130 Crew Chief for six years, holding an associate in aircraft maintenance technology.

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