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Image: SmallPlanetsComeInTwoSizes-20170619

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Description: June 19, 2017 Small Planets Come in Two Sizes https://www.nasa.gov/image-feature/ames/small-planets-come-in-two-sizes Researchers using data from the W. M. Keck Observatory and NASA's Kepler mission have discovered a gap in the distribution of planet sizes, indicating that most planets discovered by Kepler so far fall into two distinct size classes: the rocky Earth-size and super-Earth-size (similar to Kepler-452b), and the mini-Neptune-size (similar to Kepler-22b). This histogram shows the number of planets per 100 stars as a function of planet size relative to Earth.
Title: SmallPlanetsComeInTwoSizes-20170619
Credit: https://www.nasa.gov/sites/default/files/thumbnails/image/press-web19_small_planets_two_sizes.jpg
Author: NASA/Ames Research Center/CalTech/University of Hawaii/B.J. Fulton
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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