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Neptune is the last planet out from the Sun. It has fourteen known moons and they're a mixed bag. One of them – Triton – has over 99% of the total mass of Neptune's moons. Thirteen little moons share what's left. Only two of the moons were discovered before 1981.

Neptune's Moons - Facts for Kids

Amazing how much we know about space. I remember the time when Pluto was the last planet.

Pluto is smaller than our Moon, but it's the biggest known dwarf planet. On the inner edge of the Kuiper Belt, the Sun is so far away it would look like a bright star from there. And Pluto can get so cold that its atmosphere freezes and falls to the ground.

Pluto - Facts for Kids

passed this on for my grandson. I just bought him a Tee Shirt with an astronaut featured on it.