The images above was taken just 15 minutes after New Horizons’ closest approach to Pluto in July, looking back toward the sun.
It captures a near-sunset view of the rugged, icy mountains and flat ice plains extending to Pluto’s horizon.
The smooth expanse of the informally named icy plain Sputnik Planum (right) is flanked to the west (left) by rugged mountains up to 3,500 metres high, including the informally named Norgay Montes in the foreground and Hillary Montes on the skyline.
To the right, east of Sputnik, rougher terrain is cut by apparent glaciers. The backlighting highlights over a dozen layers of haze in Pluto’s tenuous but distended atmosphere.
The image was taken from a distance of 18,000 kilometres from Pluto.
The top image above is of a scene 1,250 kilometres wide, while the close-up view beneath it is 380 kilometres across.
Bill Condie is a science journalist based in Adelaide, Australia.
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