NASA’s Artemis II Moon Mission Research Continues on Earth
NASA's Artemis II Moon Mission Research Continues on Earth
Unlocking the Secrets of Space Travel
Since NASA's Artemis II crew members safely splashed down in the Pacific Ocean on April 10 after their record-setting mission around the Moon, science teams have been busy collecting more data and combing through observations collected on the test flight. Results from these science investigations will help support safe human exploration of deep space and provide a blueprint for how future missions will conduct science on the lunar surface as NASA builds a Moon Base and develops an enduring human presence there.
Postflight Crew Health, Performance Data
In the hours, days, and weeks after landing, the Artemis II crew members, NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen, contributed critical data to help the agency understand how the human body reacts to spaceflight. Collecting this data as soon as possible after landing was important to understand how the body adapts from microgravity to Earth's gravity. The data will inform NASA's understanding of how quickly crews can complete mission-critical tasks after landing on a planetary surface like the Moon or Mars, where there won't be landing support personnel to assist.
Within a day of splashdown, researchers collected a suite of data for the Artemis II Spaceflight Standard Measures study, which is part of a larger effort across the astronaut corps to gather a baseline set of health measurements on blood pressure, heart rate, eye health, and motor control. Crew members also completed a mini obstacle course, which included lying down, standing up, unfurling a rope ladder, ladder climbing, and more, to assess how their bodies were adapting to Earth's gravity.
Once the crew returned to NASA's Johnson Space Center in Houston, researchers guided them through further medical check-ups and tests of motor control. Over the next several days, the crew completed obstacle courses wearing spacesuits offloaded to lunar gravity, which is roughly one-sixth the force of Earth's gravity. Researchers are now analyzing this data to gain insight into how crews may perform as they adapt to the gravity of a planetary surface.
As part of the Immune Biomarkers study, researchers are comparing blood and saliva samples collected after the Artemis II splashdown with samples collected preflight and during the mission. Among other topics, the study investigates whether and how dormant viruses reawaken in astronauts' bodies while in space.
Some crew members completed postflight cognition tests and a simulated manual spacecraft docking task to assess motor control for the ARCHeR (Artemis Research for Crew Health & Readiness) study. This, combined with data collected through a wrist-worn device while crew members were in space, is used to understand the effect of space hazards on well-being and performance.
Initial data collections for Artemis II health studies concluded 45 days after splashdown. However, medical teams will continually monitor astronaut health throughout the Artemis II crew members' lifetimes.
Analyzing Astronaut-Derived Organ Chips Flown Around the Moon
A scientist handles AVATAR organ chips following their journey around the Moon aboard Orion. The chips contain cells from each astronaut and are being prepared for detailed analysis.
Organ chips from NASA's AVATAR (A Virtual Astronaut Tissue Analog Response) investigation are being analyzed at chip developer Emulate's laboratory in Boston. The organ chips included bone marrow cells from each Artemis II astronaut. They flew around the Moon with the astronauts, and now researchers are studying these organ chips to determine how deep space radiation and microgravity affect human health at the molecular level.
Scientists are comparing the chips flown aboard the spacecraft to ground controls and crew blood samples using advanced techniques, including single-cell RNA sequencing. The analysis will characterize how organ chips model individual responses to spaceflight, which is data that could allow NASA to send future astronauts' AVATAR chips ahead on missions to develop personalized medical kits. The researchers plan to share early findings at scientific conferences while full analysis continues.
Lunar Imagery, Audio for Data Release
In this April 3, 2026, image, the Artemis II lunar science team is shown working in the Science Evaluation Room in the Mission Control Center at NASA's Johnson Space Center in Houston. The team is putting together a plan of science observations for the Artemis II crew, which was headed toward the Moon aboard Orion. As they passed the Moon at closest approach on April 6, the crew applied the geology skills they learned in the classroom and in Moon-like environments on Earth as they photographed and described nuances of geologic features such as impact craters, ancient lava flows, and surface cracks and ridges. The crew noted differences in color, brightness, and texture — details that provide clues to surface composition and history.
NASA will publish more than 100 science-related audio recordings with transcripts, as well as approximately 11,500 Earth and Moon image and video files from the mission science campaign, with accompanying data. While many of these images already are public, these records will be available through NASA's Planetary Data System, a public archive of data from all of NASA's planetary missions. To get the data ready, the team is converting files into standard formats that anyone can easily open and add information to make the data searchable in NASA's archive for generations to come.
Implications and Future Directions
The Artemis II mission has provided a wealth of data and insights that will inform future human spaceflight missions. By studying the effects of space travel on the human body and developing new technologies to support those missions, NASA is taking a crucial step towards establishing a sustainable presence in space.
As NASA continues to push the boundaries of space exploration, the agency will rely on the data and insights gained from the Artemis II mission to inform its decisions and guide its efforts. The success of the Artemis II mission is a testament to the dedication and expertise of the NASA team, and it sets the stage for even greater achievements in the years to come.
In the near future, NASA plans to send astronauts back to the Moon as part of the Artemis III mission, which will aim to establish a sustainable presence on the lunar surface. The agency is also working towards sending humans to Mars in the 2030s, with the goal of establishing a permanent human presence on the Red Planet.
The Artemis II mission has shown that with careful planning, dedication, and hard work, humanity can achieve great things in space. As we look to the future, we can be confident that NASA will continue to push the boundaries of what is possible and inspire new generations to explore and discover the wonders of the universe.
