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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 More about 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.

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."

CHAPEA mission 2 crew members (from left) Ross Elder, Ellen Ellis, Matthew Montgomery, and James Spicer, pose in front of the door to the simulated Martian landscape for their first photo inside the CHAPEA habitat after their mission began in October 2025

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.

Learn About CHAPEA

Chapea Mars habitat

About CHAPEA

CHAPEA is a series of analog missions that will simulate year-long stays on the surface of Mars.

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3D Printing a Mars Habitat

CHAPEA is a 3D-printed structure designed to provide separate areas within the habitat for living and working.

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WATCH: Timelapse Video of CHAPEA's Construction

Get a bird's-eye view of CHAPEA being printed!

Contact Us

Media POC:

Kelsey Spivey | Communication Strategist
NASA Lyndon B. Johnson Space Center
AD9- External Relations Office
Office: (281) 483-5111
Email: kelsey.m.spivey@nasa.gov