Pluto’s Icy Plains, Pits and Mountains Take Shape in Tombaugh Regio

NASA’s New Horizons team released the latest set of Pluto imagery Friday afternoon. And among the most fascinating finds are the dwarf planet’s smooth, craterless plains — informally dubbed Sputnik Planum — which push up against mountains of ice as tall as Colorado’s Rocky Mountains.

“I think the solar system saved the best for last,” Principal Investigator Alan Stern said in a press conference at NASA Headquarters.

New Horizons co-investigator Jeff Moore said the newly unveiled vast,

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