The rocky alien planet Kepler 186f is an Earth-size world that could have liquid water on its surface, and possibly even life. It orbits a star 490 light-years away.
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KardashevScale_v8 This scale puts technological progress and energy consumption into perspective, and it helps us understand how advanced our civilization is.
Not to mention we have developed ways to kill something without being anywhere near it should it be necessary, or dare I say, fun?