New Horizons reveals more mountains in Pluto's heart
The frozen peaks were found on the lower-left edge of the dwarf world's "heart" and are 1-1.5km-high.They sit between a patch of icy, flat terrain, called Sputnik Planum, which scientists believe is less than 100 million years old, and a dark area dating to billions of years ago.More close-ups will be unveiled on Friday at a press conference.
Jeff Moore, who leads the geology, geophysics and imaging team on New Horizons, said: "There is a pronounced difference in texture between the younger, frozen plains to the east and the dark, heavily-cratered terrain to the west.
"There's a complex interaction going on between the bright and the dark materials that we're still trying to understand."
The newly spotted mountains are about 110km away from another range, which is now known as Norgay Montes, which appeared in some of the first images returned from last week's fly-by.
Those peaks are much more lofty: standing at about 3.3km-high, they rival the Rocky Mountains in size.
New Horizons has captured images of two of Pluto's small moons: Nix (left) and Hydra (right)
The New Horizons spacecraft has also zoomed in on two of Pluto's five moons.
An image taken by the probe's high resolution camera, Lorri, reveals the most-detailed-view yet of Hydra, which is about 55km-long and 40km-wide.
The little satellite seems to have at least two large craters, and its top half looks darker than its bottom, suggesting the make-up of its surface may be varied.
Another picture snapped by the Ralph instrument reveals Nix with its colours boosted, which is a technique that helps scientists to identify details on the surface they would otherwise be unable to see.
Through this, the team has identified a reddish spot, which may be a crater.
"Additional compositional data has already been taken of Nix, but is not yet downlinked. It will tell us why this region is redder than its surroundings," said mission scientist Carly Howett.
"This observation is so tantalizing, I'm finding it hard to be patient for more Nix data to be downlinked."
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