Through a spectroscope, the sufaces of most Kuiper Belt Objects appear very similar to Pluto.
Also appear to similar to comet nuclei.
They all appear to contain varying amounts of water, nitrogen, methane, and carbon monoxide ice.
Two broad categories: Red KBOs and Gray KBOs. Pluto is red.
Many have moons!
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 KBO EL61 and its two moons.
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