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More clues that Earth-like exoplanets are indeed Earth-like
Kepler-186f is less than 10 percent larger in radius than Earth, but its mass, composition and density remain a mystery. It orbits its host star every 130 days.
Kepler-62f was the most Earth-like exoplanet until scientists noticed 186f in 2014. It's about 40 percent larger than our planet and is likely a terrestrial or ocean-covered world.
ALIEN ROCK GEMSTONE
Jul/1/2018, 9:28 am
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