NASA faced another setback with its new moon rocket, delaying astronauts’ planned lunar mission to the spring. The issue arose when the flow of helium to the rocket’s upper stage was interrupted, a crucial element for engine purging and fuel tank pressurization. This problem is separate from the hydrogen fuel leaks encountered during a previous countdown rehearsal.
Jared Isaacman, NASA’s administrator, suggested that a faulty filter, valve, or connection plate might be causing the helium flow disruption. To address the issue, the rocket needs to be taken to the Vehicle Assembly Building at the Kennedy Space Center in Cape Canaveral, Fla., ruling out a March launch. The next potential launch windows would be in early or late April.
Despite the setback, NASA had recently conducted a successful fuelling test, allowing for optimism regarding a March liftoff for the Artemis II mission. The crew, now in quarantine, is preparing for the historic flight, which aims to orbit the Moon and practice docking maneuvers as part of the Artemis program’s goal to land astronauts on the lunar surface in the coming years.
The Artemis II mission involves the SLS rocket’s interim cryogenic propulsion stage, which is crucial for positioning the Orion crew capsule in the correct orbit around Earth and facilitating crew training for future lunar missions. While NASA’s Apollo program successfully sent 24 astronauts to the moon between 1968 and 1972, the Artemis program is still in its early stages, with only one unmanned lunar mission completed thus far.