Artemis II Update-18, Day 6: Crew Wraps Historic Lunar Flyby

NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, along with Canadian Space Agency astronaut Jeremy Hansen, spent nearly seven hours observing the Moon as their Orion spacecraft swept past its far side. It marked the first time humans have traveled this route since Apollo 17 in December 1972.

The crew crossed a historic threshold earlier in the day. At 1:56 p.m. Eastern Time, Orion surpassed the distance record set during Apollo 13, when astronauts reached 248,655 miles from Earth during their emergency return. Two minutes after their closest lunar approach, the Artemis II crew pushed that boundary further, reaching approximately 252,756 miles from Earth.

Lunar Flyby Observations And Record-Breaking Distance

The spacecraft’s closest pass came at about 7:00 p.m., when Orion flew roughly 4,067 miles above the Moon’s surface. That maneuver occurred during a planned communications blackout, as the Moon temporarily blocked signals between the spacecraft and Earth.

While out of contact, the crew documented the lunar far side, a region never visible from Earth. They photographed impact craters, ancient lava plains, and networks of ridges and fractures shaped over billions of years. Differences in brightness and color were also noted, offering clues about the Moon’s composition and geological history.

As Orion slipped behind the Moon, the astronauts witnessed an “Earthset,” watching Earth disappear below the lunar horizon. Moments later, as the spacecraft emerged, they observed an “Earthrise,” a visual long associated with early Apollo missions.

The observations are expected to support ongoing lunar science work. NASA officials said the imagery and data collected during the flyby will help refine understanding of the Moon’s surface evolution and assist in planning future crewed missions under the Artemis program.

Solar Eclipse And Rare Lunar Phenomena Recorded

Toward the end of the flyby, the alignment of the spacecraft, the Moon, and the Sun created a prolonged solar eclipse visible from Orion. For nearly an hour, the astronauts observed the Sun’s outer atmosphere, known as the corona, appearing as a halo around the Moon’s edge.

The eclipse also allowed the crew to study the Moon’s darkened surface under unique conditions. During this period, astronauts reported seeing six brief flashes of light, believed to be meteoroids striking the lunar surface at high speeds.

Such impacts occur regularly but are rarely observed directly from orbit. Scientists plan to analyze the timing and location of these flashes using spacecraft data and compare them with observations from Earth-based astronomers.

Post-Flyby Outreach And Data Analysis Begins

Following the flyby, the crew took part in a live call with Donald Trump, who congratulated the astronauts during NASA’s broadcast coverage. They also spoke with NASA Administrator Jared Isaacman and responded to questions submitted through social media platforms.

Mission teams are now preparing to receive a large volume of data transmitted from Orion. Engineers and scientists will review images, audio recordings, and telemetry collected during the flyby to identify key scientific insights and operational lessons.

NASA said the crew is scheduled to discuss their observations with the lunar science team in a live broadcast on April 7. Researchers are also expected to invite amateur astronomers to contribute observations taken during the same window, particularly in tracking the reported impact flashes.

The Artemis II mission, designed as a crewed test flight, continues its journey back toward Earth following the flyby. The success of this phase is expected to inform future missions aimed at returning astronauts to the lunar surface for the first time in more than half a century.

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