Artemis II marks the return of humans to lunar vicinity after decades, with Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialists Christina Koch and Jeremy Hansen aboard. The mission will not land on the Moon but will instead orbit its far side, leveraging lunar gravity for a slingshot return trajectory. This endeavor represents a critical step toward future lunar landings and sustained exploration beyond Earth's orbit.
The mission timeline spans 10 days, with the Orion spacecraft taking nearly four days to reach the Moon, targeting arrival by April 6. The trajectory involves a loop beyond the lunar far side, using gravity to propel the capsule back toward Earth. Splashdown is planned for April 10 in the Pacific Ocean, concluding this historic test flight.
Pre-launch preparations included the rollout of the Space Launch System rocket and Orion module on January 17, 2026, a four-mile journey that required about 12 hours. The first wet dress rehearsal occurred on February 2, 2026, a procedure where NASA engineers inspect the loading of liquid hydrogen and liquid oxygen into the rocket. These steps are standard for verifying systems before launch, though they faced challenges similar to previous missions.
Overall, we don't have any major concerns.
Technical difficulties emerged during pre-launch testing, echoing issues from Artemis I. Artemis II experienced delays in fuelling due to cold weather and a liquid hydrogen leak problem with a valve associated with pressurisation of the Orion crew module. NASA has stated it will pause to address any issues during testing or at other points should technical challenges arise, and the assembly may need to be rolled back if engineers feel extra work is needed prior to launch. Delays to the launch of Artemis II are highly possible, as seen with Artemis I, underscoring the complexities of human spaceflight.
On launch day, Artemis II faced a communication problem between Eastern Range and the flight termination system, along with a temperature spike in one of two batteries in the Launch Abort System. NASA lost communication with the Orion capsule momentarily after launch, though this was fixed after a launch controller retrieved shuttle-era heritage equipment from the Vehicle Assembly Building. These incidents highlighted the need for robust contingency plans in high-stakes missions.
Engineers worked for around an hour to resolve the battery temperature issue, determining it was a faulty sensor rather than a physical battery failure. The ground team will measure gaseous nitrogen accumulation between the Orion crew module and launch abort system hatches, as it could pose a safety issue for the ground crew. NASA said engineers have been troubleshooting dropouts in audio communication among the ground teams, indicating ongoing efforts to maintain operational integrity.
NASA has said it 'will pause to address any issues during the test or at any other point should technical challenges arise.'
During the flight, the crew manually took control of the Orion capsule as a test for future missions, a necessary skill for docking with a lunar lander. The Artemis II astronauts experienced a moonrise from space, a visual milestone in their journey. These activities are part of validating spacecraft systems and crew readiness for more complex lunar operations.
After circling the far side of the moon, the astronauts experienced a 40-minute communications blackout before re-establishing contact with Mission Control, according to major media reports. US President Donald Trump spoke with the crew via audio communications and congratulated them on Monday, local time, asking what the dark side of the moon was like and how it felt to go incommunicado with Earth during that part of the flight. Trump told the astronauts they had made history and made all America incredibly proud, and added they were modern-day pioneers, emphasizing the mission's national significance.
Flight Day 4 began for the Artemis 2 astronauts with a wakeup call at about 12:35 p.m. EDT to the song 'Pink Pony Girl' by Chappell Roan, but Mission Control cut off the song just before the first chorus to greet the crew. Mission Control called off a deep space maneuver by the Orion spacecraft to refine its trajectory for the moon on Flight Day 4, adjusting plans based on real-time conditions. The astronauts are due to wake up at 12:35 p.m. EDT on Saturday morning to begin their day, maintaining a structured schedule despite in-flight challenges.
Happy to report that the toilet is go for use. We do recommend letting the system get to operating speed before donating fluid.
Following launch, the crew faced a 'controller issue' with the toilet, which mission specialist Christina Koch troubleshooted successfully. The Artemis 2 crew reported a burning smell from their Orion spacecraft's toilet late last night, with flight controllers initially suspecting it might be from orange insulation on the toilet's hygiene bay door and not expressing concern. The astronauts radioed back that the smell didn't seem to be from the insulation but smelled similar to starting up an old electric heater. According to www.wionews.com, Mission Control described the toilet as ready for use but recommended letting the system get to operating speed before use, and mission control will continue to evaluate the smell, though the crew received clearance to continue using the toilet.
Flight controllers were unable to perform a wastewater dump last night, complicating hygiene management. The astronauts will perform manual flying to position the urine vent nozzle toward the sun to test a heating fix for the wastewater dump system, aiming to resolve the issue through innovative in-flight adjustments.
The crew will spend the day studying to prepare for photographing and observing moon targets during their lunar flyby on Monday, April 6, focusing on scientific objectives. The Artemis 2 astronauts are closer to the moon than they are to Earth, a milestone radioed by CAPCOM Jacki Mahaffey around midnight EDT on Saturday morning, according to multiple reports. This proximity marks a key phase in their journey, enabling detailed lunar observations.
There are two Microsoft Outlooks and neither one of those are working.
According to major media reports, the Artemis II crew traveled about 252,760 miles away from Earth, and the mission marked NASA's closest encounter with the moon in over 50 years. These achievements highlight the mission's historical significance, bridging the gap between Apollo and future lunar exploration efforts.
Artemis II astronauts faced Microsoft Outlook issues hours after launch, with according to www.wionews.com, Reid Wiseman describing that neither of two Microsoft Outlook systems were working. NASA said engineers have been troubleshooting dropouts in audio communication among the ground teams, indicating that software and communication challenges persist alongside hardware issues, requiring continuous monitoring and fixes.
The exact current date and mission day for Artemis II remain unclear, given conflicting reports about pre-launch activities in 2026 and in-flight events in April. The cause of the temporary loss of communication with the Orion capsule after launch, as reported by www.wionews.com, has not been detailed elsewhere, and it is unknown whether the toilet issues are related or what their root cause is. Specific technical challenges that led to the 'NO-GO' declaration before launch have not been fully disclosed, and the exact distance of the spacecraft from Earth and the moon beyond the milestone of being closer to the moon is not confirmed.
The crew's manual control testing is essential for future missions, particularly for docking with lunar landers, as delays to the launch of Artemis II are highly possible, reflecting lessons from Artemis I. These elements underscore the mission's role in advancing human spaceflight capabilities amid ongoing technical and logistical hurdles.