Why did NASA postpone the launch of Artemis I to September 23–27?

The launch of the Artemis I mission by the National Aeronautics and Space Administration (NASA) has been postponed until September 23–27. The most recent postponement follows two launches that were cancelled due to technical difficulties.

The Moon mission's previous two launch attempts in late August and early September were marred by fuel leaks and engine temperature problems. The mission's ultimate goal is to return humans to the moon.

Senior NASA official Jim Free stated that the agency is considering the days of September 23–27 as prospective launch dates. The Moon's 28-day cycle was used to determine when the next prospective launch date would occur.

When NASA engineers identified a temperature issue with one of the four RS-25 engines (engine 3) in the rocket, the initial launch attempt on August 29 was aborted. .

The engineers discovered that the launch conditions' increased pressure was insufficient to heat the engine to the right temperature for starting

After numerous fruitless attempts by technicians to fix a leak of super-cooled liquid hydrogen propellant being injected into the vehicle's core-stage fuel tanks, the second attempt to launch the 322-ft Space Launch System (SLS) was aborted.

The organisation plans to fly the SLS along with its Orion spacecraft, three mannequins, and other equipment to test the space shuttle's comfort and safety throughout the 42-day journey. The SLS would travel to the Moon as part of the mission, orbit it, and then come back to Earth.

The first crewed lunar trip in decades, Artemis II, will exploit the scientific data from Artemis I. The SLS, currently the most powerful rocket on Earth, propels its huge frame into space with 700,000 gallons of ultra-cold liquid hydrogen and liquid oxygen.