- Artemis II mission delayed to March after a liquid hydrogen leak was detected during a key wet dress rehearsal.
- NASA’s SLS rocket fueling test ended early due to safety concerns and technical issues.
- The mission will carry four astronauts around the Moon, paving the way for Artemis III in 2027.
New Delhi: NASA has officially confirmed that the Artemis II mission delayed timeline will now extend into March, after engineers detected a hydrogen leak during a crucial fueling test at Kennedy Space Center in Florida.
The ambitious lunar mission, designed to send four astronauts on a historic journey around the Moon, had originally been targeted for February 6 before facing multiple delays.
NASA Shifts Artemis II Launch Window to March
NASA Administrator Jared Isaacman announced the change on social media following the conclusion of the wet dress rehearsal.
“With the conclusion of the wet dress rehearsal today, we are moving off the February launch window and targeting March for the earliest possible launch of Artemis II,” he said.
He added that astronaut and public safety remains NASA’s highest priority, stressing that the agency will proceed only when fully prepared for the historic flight.
Hydrogen Leak Forces Early End to Critical Countdown Test
The wet dress rehearsal, a two-day test beginning January 31, successfully loaded cryogenic propellants into the Space Launch System (SLS) rocket.
However, the test ended early Tuesday after a liquid hydrogen leak was detected at the tail service mast umbilical interface.
NASA engineers spent several hours attempting to troubleshoot the issue but were unable to resolve it during the countdown.
Countdown Automatically Halted Due to Leak Spike
NASA explained that the launch sequencer stopped operations when the leak rate suddenly increased.
“The engineers conducted a first run at terminal countdown operations… before the ground launch sequencer automatically stopped the countdown due to a spike in the liquid hydrogen leak rate,” NASA stated in a blog update.
Additional Technical Issues Noted in Orion Module
NASA also reported a separate concern involving a valve linked to Orion crew module hatch pressurization.
The valve, which had recently been replaced, required retorquing, while final closeout operations also took longer than expected.
Despite these setbacks, NASA confirmed that many key rehearsal objectives were still achieved.
Second Wet Dress Rehearsal Planned Before Launch
A second wet dress rehearsal is now expected in March ahead of the revised launch schedule.
NASA officials will use this additional test to ensure the hydrogen leak issue is fully corrected and all systems are cleared for flight.
Artemis II Astronauts Released From Quarantine
With the delay, the Artemis II crew will be released from quarantine, which began in Houston on January 21.
NASA stated the astronauts will re-enter quarantine about two weeks before the next launch opportunity.
Mission Will Pave Way for Artemis III Moon Landing
Artemis II is a 10-day mission that will orbit the Moon and serve as a major milestone for NASA’s lunar exploration program.
It will set the stage for Artemis III, scheduled for 2027, when humans are expected to land on the lunar South Pole for the first time and begin establishing a long-term presence.
Also Read | Artemis II Mission Delayed to March After Hydrogen Leak: NASA
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