[ad_1] An exoplanet 500 light-years away, the Kepler-186f, became the first planet known to be the size of the Earth outside the solar system that orbits around a star in the habitable …
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[ad_1] An exoplanet 500 light-years away, the Kepler-186f, became the first planet known to be the size of the Earth outside the solar system that orbits around a star in the habitable …
Read More »