The four-member crew of NASA’s Artemis II mission are hurtling back towards Earth after becoming the first humans in over five decades to venture beyond low Earth orbit. Having completed a high-stakes lunar flyby that saw them pass within 4,067 miles of the Moon’s surface, the astronauts are now in the final phase of a ten-day odyssey that has already shattered records set during the Apollo era.
Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialists Christina Koch and Jeremy Hansen are currently monitoring systems aboard the Orion spacecraft, named Integrity, as it traverses the vast gulf between the Moon and Earth. The mission is scheduled to conclude on Friday, 10 April, with a precision splashdown in the Pacific Ocean off the coast of San Diego at approximately 8:07 p.m. EDT.
On Monday, 6 April, the mission officially eclipsed the record for the farthest distance humans have ever travelled from our home planet. At 12:56 p.m. CDT, the crew surpassed the 248,655-mile mark established by the ill-fated Apollo 13 mission in 1970. At the peak of their trajectory, the Orion capsule reached a maximum distance of 252,756 miles from Earth, marking a new milestone in the history of human exploration.
Reid Wiseman, speaking from the spacecraft shortly after the milestone, highlighted the significance of the achievement for future generations. He noted that the crew chose this moment to challenge current and future explorers to ensure that this new record is not long-lived, as NASA continues its push toward a sustainable presence on the Moon and eventual missions to Mars.
The mission has not been without its technical hurdles. On Tuesday, flight controllers in Houston addressed an ongoing issue with the spacecraft’s waste management system. While the toilet itself was reported to be functioning, an issue involving the venting of urine into space necessitated further investigation. NASA officials suggested that a chemical reaction creating debris in a filter, rather than a previously suspected ice blockage, was the likely cause of the obstruction.
Despite these minor complications, the lunar flyby provided an unprecedented opportunity for scientific observation. The crew conducted an intensive five-hour survey of more than two dozen lunar targets, using high-powered cameras to document impact craters and features on the Moon’s far side. The astronauts also witnessed a rare celestial event: a solar eclipse viewed from deep space, where the Moon completely obscured the Sun for nearly an hour.
The mission is now focused on the critical return trajectory. On Tuesday evening, the crew performed a 15-second thruster burn to fine-tune their approach. Artemis II Flight Director Rick Henfling confirmed the success of the Return Trajectory Correction burn, which utilised Orion’s reaction control thrusters to accelerate the ship by approximately 1.3 feet per second.
As Orion nears Earth's atmosphere, the final challenge will be the high-speed re-entry. The spacecraft must withstand temperatures of nearly 2,800°C before deploying a series of 11 parachutes to slow its descent to just 17 miles per hour. Recovery teams aboard the USS John P. Murtha are already in position to retrieve the astronauts and the capsule upon splashdown.
NASA Administrator Bill Nelson previously described Artemis II as a foundational step for the 21st century. This mission serves as the final crewed flight test before Artemis III, which aims to land the first woman and the next man on the lunar surface later this decade.