Dedicated Team of Scientists Discover Habitable-Zone Earth-Size Planet in Kepler Data

An illustration of Kepler-1649c orbiting around its host red dwarf star. This newly discovered exoplanet is in its star’s habitable zone and is the closest to Earth in size and temperature found yet in Kepler’s data. Credits: NASA/Ames Research Center/ Daniel Rutter

MOUNTAIN VIEW, Calif. (SETI Institute PR) — In a new paper published in the Astrophysical Journal Letters, co-authored by SETI Institute scientist Jeff Coughlin, astronomers using Kepler data have identified a planet nearly the same size of Earth that orbits in its star’s habitable zone, where liquid water could exist on its surface. 

This new world, Kepler-1649c, is 300 light-years away and orbits a star that is about one-fourth the size of our Sun.  Only 6% bigger than the Earth, it shares its sun with a planet much like Venus, Kepler-1649b, which was discovered three years ago. Although NASA’s Kepler space telescope was retired in 2018 when it ran out of fuel, scientists are still making discoveries as they continue to examine the signals Kepler detected. 

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Earth-Size, Habitable Zone Planet Found Hidden in Early NASA Kepler Data

An illustration of Kepler-1649c orbiting around its host red dwarf star. This newly discovered exoplanet is in its star’s habitable zone and is the closest to Earth in size and temperature found yet in Kepler’s data. Credits: NASA/Ames Research Center/ Daniel Rutter

MOFFETT FIELD, Calif. (NASA PR) — A team of transatlantic scientists, using reanalyzed data from NASA’s Kepler space telescope, has discovered an Earth-size exoplanet orbiting in its star’s habitable zone, the area around a star where a rocky planet could support liquid water.

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