@NASA: Learn more about our CHAPEA missions that simulate year-long stays on the surface of Mars: https://nasa.gov/humans-in-s…
Summary
NASA's CHAPEA missions simulate year-long stays on Mars to study crew health and performance, with the second mission having begun in October 2025.
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Learn more about our CHAPEA missions that simulate year-long stays on the surface of Mars: https://nasa.gov/humans-in-space/chapea/…
CHAPEA - NASA
Source: https://www.nasa.gov/humans-in-space/chapea/
Crew Health and Performance Exploration Analog
The Crew Health and Performance Exploration Analog (CHAPEA) is a series of missions that simulate year-long stays on the surface of Mars. Each mission consists of four crew members living in an isolated 1,700-square-foot habitat. During the missions, crew conduct simulated spacewalks and provide data on a variety of factors, including physical and behavioral health and performance.
Learn Moreabout Crew Health and Performance Exploration Analog
CHAPEA Mission 2 Highlights

CHAPEA Mission 2 Has Begun!
Ross Elder, Ellen Ellis, Matthew Montgomery, and James Spicer are now living and working inside the 3D-printed habitat at the agency’s Johnson Space Center in Houston until Oct. 31, 2026.
Read About CHAPEA Mission 2 Ingress
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Watch: CHAPEA Ingress Ceremony
A crew of four research volunteers stepped inside NASA’s CHAPEA habitat on Oct. 19, marking the start of the agency’s second 378-day simulated Mars mission.
Watch CHAPEA Mission 2 Ingress Ceremony

Podcast: New CHAPEA Crew Members Discuss Their Mission
Before the crew entered the habitat, they sat down and talked about their mission on an episode of “Houston We Have a Podcast.”

NASA Announces CHAPEA Crew for Year-Long Mars Mission Simulation
Meet the four research volunteers whose work will help NASA make informed trades between risks and interventions for long-duration exploration missions.
Meet the CHAPEA Mission 2 Crew
Learn About CHAPEA

About CHAPEA
CHAPEA is a series of analog missions that will simulate year-long stays on the surface of Mars.
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CHAPEA Mission 1 Highlights
Mission 1 began June 25, 2023 and ended July 6, 2024. Get a mission overview, meet the Mission 1 crew, watch ingress and egress events, listen to mission-based podcasts, and more!
Learn More About CHAPEA Mission 1

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NASA’s Johnson Space Center (@NASAJohnson): Celebrating 300 days “on” Mars! 🔴
Our CHAPEA crew is continuing to test systems, study human performance, and explore what future deep space exploration will demand. A milestone built on grit, curiosity, and the drive to push beyond Earth! See some photos from the mission ⬇️
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