Meet Pluto's New Moon
Astronomers using Hubble Space Telescope have discovered a new, 21 mile-wide moon orbiting Pluto. They're going to call it "P4" until they can come up with a better name for it.
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Astronomers using Hubble Space Telescope have discovered a new, 21 mile-wide moon orbiting Pluto. They're going to call it "P4" until they can come up with a better name for it.
