«The randomly jumbled mountains might be huge blocks of hard water
ice floating within a
vast, denser, softer deposit of frozen
nitrogen within the region informally named Sputnik Planum.»
The video begins in the mountainous region of southwest Pluto and travels over Sputnik Planitia, a
vast lowland of
nitrogen ice that makes up the western lobe of the heart - shaped Tombaugh Regio.