via Tumblr http://bit.ly/1Owxhzu Sputnik Planum vs. Krun Macula via NASA http://go.nasa.gov/1tCygov
Sputnik Planum vs. Krun Macula via NASA http://go.nasa.gov/1tCygov
via Tumblr http://bit.ly/1Owxhzu Sputnik Planum vs. Krun Macula via NASA http://go.nasa.gov/1tCygov
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