Artemis II crew has entered the lunar sphere, approaching a historic distance record
Artemis II astronauts are entering the lunar sphere, nearing a record distance as they traverse the far side of the Moon.
The four astronauts on NASA’s Artemis II mission have entered the Moon’s gravitational sphere of influence early Monday, a major turning point as they progress on their journey around the lunar far side in what is poised to be the farthest human spaceflight in history.
The crew, consisting of NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, along with Canadian Space Agency astronaut Jeremy Hansen, has been journeying aboard their Orion capsule since their launch from Florida last week. They are anticipated to awaken at approximately 10:50 a.m. ET on Monday for their sixth day of flying.
At 7:05 p.m. ET, the spacecraft will achieve its farthest point from Earth, reaching about 252,757 miles, exceeding the Apollo 13 record by 4,102 miles—a record that has remained unbroken for 56 years.
At the peak of their journey, the Artemis II crew will soar over the Moon’s far side, approximately 4,000 miles above its shadowy surface. From this vantage point, they will observe the Moon eclipsing a distant, basketball-sized Earth in the background—an extraordinary perspective for human explorers.
The official lunar flyby of the mission is set to commence at 2:34 p.m. ET, immersing the crew in near-total darkness and experiencing brief communications blackouts as the Moon obstructs signals to NASA’s Deep Space Network, the global antenna system that facilitates contact with deep-space missions.
The flyby is anticipated to continue for approximately six hours.
Throughout this time, the astronauts will utilize high-quality cameras via Orion’s windows to obtain intricate images of the Moon’s outline. These photographs are anticipated to capture sunlight curving around the edges of the moon, producing a unique visual phenomenon reminiscent of an eclipse, which holds considerable scientific importance.
The crew will also strive to capture a captivating visual moment as Earth ascends from the lunar horizon after the spacecraft comes into view from behind the Moon—a dramatic inversion of the familiar moonrise observed from Earth.
At NASA’s Johnson Space Center in Houston, a team of lunar scientists will observe the flyby in real time from the Science Evaluation Room. The astronauts, thoroughly trained in lunar science, will offer live descriptions of their observations, contributing valuable qualitative data to the mission’s scientific results.
Artemis II marks the inaugural crewed test flight of NASA’s Artemis program, a multi-billion-dollar endeavor focused on bringing humans back to the Moon’s surface by 2028, in advance of rival international initiatives. The ultimate aim is to create a lasting U.S. presence on the Moon, featuring a lunar base that could act as a launchpad for future crewed missions to Mars.
