Science and Technology Videos
A massive, million-square-mile nitrogen glacier makes up Pluto’s heart, one of the distinguishing characteristics that New Horizons saw on approach and captured in high-definition images during the flyby. Sputnik Planitia, the left ventricle of the heart, essentially forced the dwarf planet to rotate so that the basin now almost exactly opposes Pluto’s moon, Charon.
Credit Voyager