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Scientists got their first glimpse at images of Pluto showing that the dwarf planet and its largest moon may both be geologically active.
New details of Pluto’s largest moon Charon reveal a swath of cliffs and troughs stretching about 600 miles. At upper right, along the moon’s curving edge, is a canyon estimated to be four to six miles deep.
One of the first images near Pluto’s equator reveals a range of "youthful" mountains ranging about 100 million years old and about 11,000 feet high.