Sputnik Planum
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Translingual[edit]
Etymology[edit]
From being originally believed to be an elevated plain (a planum; from Latin planum). named after the first artificial satellite, Sputnik 1. From Russian спу́тник (spútnik).
Proper noun[edit]
- Former name of Sputnik Planitia.: A plain in Tombaugh Regio, Pluto, Solar System