I see ice on Pluto!

Pluto appears as a nearly featureless gray sphere, with blurry lighter and darker areas.

Pluto is now called a "dwarf planet." Its orbit is farther from the Sun than Neptune's—most of the time. Sometimes its elongated orbit around the Sun puts Pluto inside the orbit of Neptune. Pluto orbits in a region of the solar system called the Kuiper [KI-per] belt, along with thousands of other icy objects. Pluto is made mostly of water ice. Deep inside are heavier iron and rock.

This image by the Hubble Space Telescope.

Diagram of Pluto, with one-quarter cut away to reveal small rocky core.

The inside of Pluto is mostly water ice, with a small rocky core.

Pluto appears as a bright orange spot in the lower left and Charon as a smaller orange dot in the upper right.

Pluto and one of its three moons Charon, as seen by the Hubble Space Telescope. Charon is covered in water ice.

Pluto and Charon appear as light blue spots near the center of the image.

Pluto and Charon (one of Pluto's three moons), as seen by the Hubble Space Telescope.