Pluto was identified in 1930, but by 1994, it was still little more than a blurry pixelated smudge on astronomers’ screens. Today, we marvel at its icy plains, towering mountains, and stunningly ...

It's got very complicated seasonal cycles. It's got all kinds of active geology going on... it's got everything you want." So Pluto is a planet. Case closed. Well maybe not totally closed.