Space Exploration in the Backyard, on a Budget—How NASA Simulates Conditions in Space Without Blasting Off

Analog missions, like those conducted at NASA’s CHAPEA facility at the Johnson Space Center, help scientists study human spaceflight without leaving Earth.

Oct 21, 2025 3

Space Exploration in the Backyard, on a Budget—How NASA Simulates Conditions in Space Without Blasting Off
A simulated Mars exterior portion of NASA's CHAPEA (Crew Health and Performance Exploration Analog) is seen at the Johnson Space Center in Houston, Texas, on August 22, 2025. CHAPEA is a 3D printed habitat designed to serve as an analog for one-year missions.

Analog missions, like those conducted at NASA’s CHAPEA facility at the Johnson Space Center, help scientists study human spaceflight without leaving Earth.
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