No, Those Aren't Snails on Pluto They're dirty icebergs, say NASA scientists By Arden Dier, Newser Staff Posted Jan 13, 2016 6:15 PM CST 33 comments Comments No giant snails here. (NASA) (Newser) – Bad news for future residents of Pluto with a fondness for escargot: The planet is not, in fact, covered with giant snails—despite images beamed back to Earth from the New Horizons probe that bear a weird resemblance to the creatures. The images, published by NASA, show oddly-shaped objects in pathways "similar in form to the slime trails left by earth snails on concrete," per the Houston Chronicle. In one image, an object appears to be approaching a fork in the path. Turns out, the objects are "dirty" icebergs traveling across an icy nitrogen plain known as the Sputnik Planum, says NASA. Some of the icebergs are as big an office building.