Take a sneak peek at Pluto

A speedy space probe barreled past Pluto for a one-shot flyby Tuesday, becoming the first spacecraft to ever visit the frozen, reddish world at the solar system’s distant frontier.

One of the strangest landforms spotted by NASA’s New Horizons spacecraft when it flew past Pluto was the “bladed” terrain formally named Tartarus Dorsa. The blades reach hundreds of feet high and are typically spaced a few miles apart. No geology degree is necessary to see why the terrain is so interesting — just grab your red and green 3-D spectacles.

One of 10 studies sponsored by NASA to explore possible planetary missions includes one for a Pluto orbiter that also would venture into the Kuiper Belt.