Astronomers have been making exciting discoveries on the outermost fringes of our solar system. Pluto, long thought to be geologically dead, may be home to a life-sustaining underground ocean. Beyond Pluto are the Kuiper Belt and the Oort Cloud, home to hundreds of thousands of icy bodies and more than a trillion comets. Science author and illustrator Ron Miller explores these far-flung areas in The Big Backyard. These regions hold materials left over from the formation of the solar system, and with new photos from the New Horizon spacecraft, astronomers can gain new insights into the origins of the sun and the planets.
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