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NASA’s Artemis II Lunar Science Operations to Inform Future Missions An image of the eastern hemisphere of the Moon as the Artemis II astronauts would see it from an altitude of about 7,000 kilometers. The Moon’s far side is mostly dark in this image, which is based on a simulated trajectory. The dark patches near the center of the sunlit portion are plains of ancient lava: Mare Marginis to the north and Mare Smythii to the south. NASA Goddard/Ernie WrightNASA’s Artemis II mission, set to send four astronauts on a nearly 10-day mission around the Moon and back, will advance the agency’s goal to land astronauts at the Moon’s south polar region and will help set the stage for future crewed Mars missions.
While the Artemis II crew will be the first humans to test NASA’s Orion spacecraft in space, they will also conduct science investigations that will inform future deep space missions, including a lunar science investigation as Orion flies about 4,000 to 6,000 miles from the Moon’s surface. From this distance, the Moon will appear to be the size of a basketball held at arm’s length and will provide a unique opportunity for scientific observations.
Artemis II is a chance for astronauts to implement the lunar science skills they’ve developed in training. It’s also an opportunity for scientists and the engineers in mission control to collaborate during real-time operations …
Kelsey Young
Artemis II lunar science lead at NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
As Orion passes on the far side of the Moon — the side that always faces away from Earth — the crew will analyze and photograph geologic features on the surface, such as impact craters and ancient lava flows, relying on their extensive geology training in the classroom and in Moon-like places on Earth. The astronauts will also practice describing nuances in shapes, textures, and colors of surface features. This type of information reveals the geologic history of an area and will be critical to collect when Artemis III astronauts explore the surface.
“Artemis II is a chance for astronauts to implement the lunar science skills they’ve developed in training,” said Kelsey Young, Artemis II lunar science lead at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “It’s also an opportunity for scientists and the engineers in mission control to collaborate during real-time operations, building on the years of testing and simulations that our teams have done together.”
In this May 2024 photo, lunar scientists are working in a mock Science Evaluation Room on the upper floor of the Mission Control Center building at NASA’sJohnson Space Center in Houston. On the large screens in the background, they are following live as NASA astronauts Kate Rubins and Andre Douglas simulate a moonwalk, in the dark, in northern Arizona’s San Francisco Volcanic Field to help NASA prepare for its Artemis III mission. Scheduled to launch in 2027, Artemis III will land two astronauts at the Moon’s South Pole region. As they did during the 2024 moonwalk simulation, scientists will develop detailed science plans for South Pole moonwalks and provide geology expertise to mission control. NASA/Robert MarkowitzThe four Artemis II astronauts, NASA’s Reid Wiseman, Victor Glover, and Christina Koch, and CSA’s (Canadian Space Agency) Jeremy Hansen, could be the first humans to see some parts of the Moon’s far side with the naked eye, depending on the spacecraft’s final trajectory as determined upon launch. During the nine Apollo missions that left Earth’s orbit, astronauts saw parts of the Moon’s far side, but not all of it, as they were limited by which sections were lit during their orbits.
One previously unlit region they may see is the Orientale Basin, a 600-mile-wide crater that serves as a transition point between the near and far side and is sometimes partly visible along the Moon’s western edge.
The astronauts may also get to observe flashes of light from space rocks striking the surface—clues that help reveal how often the Moon gets hit—or dust floating above the edge of the Moon, a mysterious phenomenon scientists want to understand.
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This visualization simulates what the crew of Artemis II might see out the Orion windows on the day of their closest approach to the Moon. It compresses 36 hours into a little more than a minute as it flies the virtual camera on a realistic trajectory that swings the spacecraft around the Moon’s far side. This sample trajectory is timed so that the far side is fully illuminated when the astronauts fly by, but other lighting conditions are possible depending on the exact Artemis II launch date. The launch is scheduled for no later than April of 2026. Download here: svs.gsfc.nasa.gov/5536/ NASA Goddard/Ernie WrightThe crew’s observations will help pave the way for lunar science activities on future Artemis missions to the Moon’s surface, including Artemis III. Artemis III astronauts will investigate the land forms, rocks, and other features around their landing site. They will also collect rock samples for generations of analyses in Earth labs and set up several instruments to investigate lunar properties and resources — information critical to future human exploration efforts.
“Whether they’re looking out the spacecraft’s windows or walking the surface, Artemis astronauts will be working on behalf of all scientists to collect clues to the ancient geologic processes that shaped the Moon and our solar system,” said Cindy Evans, NASA’s Artemis geology training and strategic integration lead, based at NASA Johnson.
In addition to lunar science observations, the crew will gather data on the effects of the space environment on the crew’s health and performance. These experiments will be managed through the Payload Mission Operations Directorate at NASA’s Marshall Space Flight Center, in Huntsville, Alabama, in tight coordination with mission control. This data could inform long-term lunar exploration and future human missions to Mars.
For more information on Artemis II, visit:
www.nasa.gov/mission/artemis-ii/
Related: NASA to Announce New Astronaut Class, Preview Artemis II Moon MissionKaren Fox / Molly Wasser
Headquarters, Washington
202-358-1600
[email protected] / [email protected]
Lonnie Shekhtman
NASA’s Goddard Space Flight Center, Greenbelt, Md.
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