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Artemis II Science

Artemis II science operations will lay the foundation for safe and efficient human exploration of the Moon and Mars.

The Orion orbiter, with 4 solar fins spread out, flies above the nearby Moon, while Earth can be seen behind the Moon. It will fly as part of Artemis II.

What We’ll Learn

The Artemis II mission will carry astronauts farther from Earth and closer to the Moon than any human has been in over half a century. From this unique vantage point and environment, the Artemis II crew will work with scientists on Earth to facilitate science investigations to inform future human spaceflight missions.

Astronaut Health

The following studies focused on the health of Artemis II astronauts will provide NASA researchers with an unprecedented glimpse into how deep space travel influences the human body, mind, and behavior. Results will help the agency build future interventions, protocols, and preventative measures to best protect astronauts on future missions to the lunar surface and to Mars.

Studies Advance Human Spaceflight Research

Get an overview of how NASA is using Artemis II to better characterize the ways in which deep spaceflight affects the human body.

ARCHeR

A study on Artemis II will monitor participating astronauts' well-being, activity and sleep patterns to learn more about human health and performance in deep space.

One of Emulate’s Organ-Chip devices.

AVATAR

An investigation will use organ-on-a-chip devices to study the effects of increased radiation and microgravity on crew health

Immune Biomarkers

Scientists will analyze blood and saliva samples from Artemis II crew members to see how deep space changes the immune system.

Artemis II Standard Measures

Crews are supplying a consistent set of health information to a data bank so that future researchers can learn more about astronaut health.

Radiation Studies

Equipment will monitor radiation levels inside and outside the Orion capsule to help characterize the deep space environment.

Observe and Record

Lunar Science

The Artemis II astronauts will be the first humans to fly by the Moon in more than 50 years and will serve as scientific ambassadors to our nearest neighbor.

On the journey to the Moon and back, the Orion capsule will fly by the far side of the Moon — the side that always faces away from Earth. During this three-hour period, astronauts will analyze and photograph geologic features, such as impact craters and ancient lava flows. They will rely on the extensive geology training they received in the classroom and in Moon-like places on Earth to describe nuances in shapes, textures, and colors — the type of information that reveals the geologic history of an area. These skills will be critical to exploring the Moon’s South Pole region through future missions.

Learn More about Lunar Science
Artemis geology training lead at NASA’s Johnson Space Center in Houston, Cindy Evans (left) and NASA astronaut and Artemis II mission specialist Christina Koch study geologic features in Iceland during Artemis II crew geology training in August 2024.
Robert Markowitz / NASA-JSC

cubesats

A rendering of a TACHELES cube satellite floating in space above Earth. It appears mostly encased in metal with some various open-air sensors on some sides.

TACHELES (German Aerospace Center (DLR)) will measure effects of the space environment on electrical components to inform technologies for lunar vehicles.

K-Rad Cube will be tasked to measure cosmic radiation and analyze its effects on astronauts as it passes through the Van Allen radiation belts, more than one-thousand kilometers above the Earth. It will be the first time a South Korea-developed cube satellite is carried by a crewed explorer.

K-Rad Cube (KASA) will use a dosimeter made of human-like tissue to measure space radiation and biological effects across the Van Allen radiation belts.

The Saudi Space Agency’s CubeSat will measure space weather at a range of distances from Earth and deploy in high Earth orbit.

A circular logo for the ATENEA cubesat. A cartoonish rendering of a CubeSat in the middle, flanked by illustrations of the Earth, Orion vehicle, the Argentina flag, the United States flag, the words "CONAE", "ARTEMIS II", and "NASA", and "ATENEA" with an icon that resembles an ancient Greek war helmet. Alone the bottom it reads "FIUBA - UNSAM - UNLP - CNEA - VENG"

ATENEA (Argentina's CONAE) will assess radiation shielding methods, measure Earth's radiation spectrum, collect GPS data, and validate a long-range communications link.