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These are artistic representations of all the planets around other stars (exoplanets) with any potential to support surface life as we know it. Most of them are larger than Earth and we are less certain about their composition and habitability. They are ranked here from closest to farthest from Earth. This selection of worlds is also subject to change as new interpretations or astronomical observations are made. Earth, Mars, Jupiter, and Neptune are shown for scale on the right. Gliese 581 d and g (red crossed planets) were recently proven to be stellar artifacts and not real planet signals.
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Distribution of Potentially Habitable Exoplanets
All Known Exoplanets
(1) The database of the Habitable Exoplanets Catalog includes both confirmed and unconfirmed exoplanets.
(2) Numbers based on the NASA Kepler Candidates waiting for confirmation, but some already confirmed.(3) Confirmed planets listed by the Extrasolar Planets Encyclopedia plus any recent corrections.
(4) Most of NASA Kepler Candidates are still unconfirmed exoplanets.