New Horizon's latest photos of Pluto: 'This part acts like a lava lamp'

The historic mission sent Nasa its highest-resolution images Thursday of dwarf planet's Sputnik Planum, a region of pitted plains and a strange 'X' formation

Icy, pitted plains and craters full of a red soot dot the landscapes of Nasa's newest photos of Pluto, released late on Thursday.

New Horizons, the first spacecraft to ever reach Pluto in a historic mission last year, sent Nasa its highest-resolution photographs so far from the broad, rolling plains that drape the dwarf planet in a heart-shaped expanse. Nasa scientists have dubbed the region within the heart Sputnik Planum, after the first manmade satellite into space.