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The TRAPPIST-1 Habitable Zone
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
The TRAPPIST-1 system contains a total of seven planets, all around the size of Earth. Three of them -- TRAPPIST-1e, f and g -- dwell in their star's so-called "habitable zone." The habitable zone, or Goldilocks zone, is a band around every star (shown here in green) where astronomers have calculated that temperatures are just right -- not too hot, not too cold -- for liquid water to pool on the surface of an Earth-like world.
NASA Image and Video Library’s own descriptionCredit lineThe TRAPPIST-1 Habitable Zone. NASA/JPL, 2017-02-22. Public domain. ID: PIA21424.
