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The habitable zone in the TRAPPIST-1 system

The habitable zone in the TRAPPIST-1 system

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NASA / JPL-Caltech

The habitable zone in the TRAPPIST-1 system
The TRAPPIST-1 system contains a total of seven known Earth-sized planets. Three of them — TRAPPIST-1e, f and g — are located in the habitable zone of the star (shown in green in this artist’s impression), where temperatures are just right for liquid water to exist on the surface.

Most NASA images are in the public domain. Reuse of this image is governed by NASA's image use policy.

Original image data dated on or about February 4, 2018

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