Artemis II Crew Prepares for Earth Return

The four astronauts aboard NASA's Artemis II mission are preparing to return to Earth on Friday, marking the end of a historic journey around the moon. The crew — consisting of U.S. astronauts Reid Wiseman, Victor Glover, and Christina Koch, along with Canadian astronaut Jeremy Hansen — will splash down in the Pacific Ocean off the coast of San Diego shortly after 8 p.m. ET (0000 GMT Saturday).

The mission has already made history as the first crewed moon voyage in over half a century and the farthest human spaceflight on record, reaching approximately 252,756 miles from Earth, according to Sky News.

During their six-hour lunar flyby, the crew conducted scientific observations and surveys of the lunar surface from about 4,000 miles above. The mission is seen as an important step in unlocking mysteries about the solar system's formation, with scientists viewing the moon as a 'witness plate' to these events.

NASA has made adjustments to the reentry process after discovering issues with the heat shield during Artemis I. The new approach involves skipping the initial dip into the atmosphere to prevent pressure buildup and potential damage. Scientists will collect detailed data on the heat shield's performance as the capsule streaks through the sky, turning it into a bright fireball.

The Orion space capsule is set to enter the atmosphere at 7:53 p.m. ET and splash down less than a quarter-hour later, at 8:07 p.m., off the coast of San Diego, as reported by NPR. The spacecraft will slow down from nearly 25,000 miles per hour to about 20 mph before dropping into the Pacific Ocean. During reentry, temperatures around the spacecraft are expected to reach approximately 5,000 degrees Fahrenheit.

Communications with the capsule will be cut off for about six minutes during reentry due to plasma buildup, according to NPR. The crew is scheduled to speak with reporters in their first press conference from space on Wednesday before splashing down. The mission aims to pave the way for future lunar landings and establish a long-term U.S. presence on the moon, ultimately building towards potential missions to Mars.

Reid Wiseman described watching Earth disappear behind the Moon as an 'unbelievable sight,' according to Ars Technica. Victor Glover expressed excitement about the upcoming reentry, stating that riding a fireball through the atmosphere is profound, per Los Angeles Times.