Earth and Kepler 452-b, sister planet, comparison. Element of this image are furnished by NASA


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Photo credit: © Naeblys / Alamy / Afripics
License: Royalty Free
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Keywords: 452-, comparison, constellation, cygnus, difference, discover, discovery, earth, exoplanet, galaxy, kepler, large, light, observe, orbit, planet, sister, sizes, solar, space, star, sun, system, telescope, twin, universe, world, worlds, years