• Science

New Images Show Pluto’s Surprising Terrain

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The new images of Pluto downloaded by the New Horizons spacecraft show that the dwarf planet is far more varied and complex than NASA had expected.

After receiving and releasing initial images from the spacecraft’s July 14 flyby, NASA began a yearlong downlinking process to acquire all of the data and high resolution photography from New Horizons, according to a press release. These photographs with more detail reveal unexpected terrain diversity, such as ice flows seemingly cascading from mountains into plains, as well as what appear to be dunes.

“Pluto is showing us a diversity of landforms and complexity of processes that rival anything we’ve seen in the solar system,” said Alan Stern, the New Horizons principal investigator “If an artist had painted this Pluto before our flyby, I probably would have called it over the top — but that’s what is actually there.”

Photos from New Horizons have surprised scientists since the spacecraft approached and then passed Pluto in July, capturing unprecedented views of the dwarf planet along the way.

[NASA]

See New Horizons' Best Images of Pluto

Pluto False Color New Horizons
An enhanced color global view of pluto released on July 24, 2015. NASA/Reuters
New Horizons Pluto Heart Tombaugh Regio
In the center left of Pluto’s vast heart-shaped feature – informally named “Tombaugh Regio” - lies a vast, craterless plain that appears to be no more than 100 million years old, and is possibly still being shaped by geologic processes. This frozen region is north of Pluto’s icy mountains and has been informally named Sputnik Planum (Sputnik Plain), after Earth’s first artificial satellite. The image was acquired on July 14 from a distance of 48,000 miles (77,000 kilometers).NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute
New Horizons Pluto Mountain Range
A close-up image of a region near Pluto's equator shows a range of mountains rising as high as 11,000 feet (3,500 meters) taken by NASA's New Horizons spacecraft as it passed within 7,800 feet of the dwarf planet on July 14, 2015.NASA/Getty Images
New Horizons Pluto Heart Mountain Range
A newly discovered mountain range lies near the southwestern margin of Pluto’s heart-shaped Tombaugh Regio (Tombaugh Region), situated between bright, icy plains and dark, heavily-cratered terrain. NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute
New Horizons Pluto Charon
A composite image of Pluto and its largest moon Charon collected separately by New Horizons during approach on July 13 and July 14, 2015. The relative reflectivity, size, separation, and orientations of Pluto and Charon are approximated in this composite image, and they are shown in approximate true color. NASA/JHUAPL/SWRI
Pluto Heart New Horizons
Pluto, seen from the New Horizons spacecraft on July 13, 2015 just before the space craft's historic fly-by.NASA/AP
New Horizons Pluto Charon Moon
NASA's New Horizons captured this high-resolution enhanced color view of Charon just before closest approach on July 14, 2015.NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute
New Horizons Pluto Charon Moon
A close up view of Pluto's largest moon, Charon.NASA/JHUAPL/SWRI
Pluto
Pluto on July 14, 2015, as seen by NASA’s New Horizons spacecraft while it looked back toward the sun.NASA/JHUAPL/SwRI
Pluto New Horizons Sand Dunes
This synthetic perspective view of Pluto, based on the latest high-resolution images to be downlinked from NASA’s New Horizons spacecraft, shows what you would see if you were approximately 1,100 miles (1,800 kilometers) above Pluto’s equatorial area, looking northeast over the dark, cratered, informally named Cthulhu Regio toward the bright, smooth, expanse of icy plains informally called Sputnik Planum. NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute
Pluto New Horizons Sand Dunes
A mosaic of high-resolution images of Pluto, sent back from NASA’s New Horizons spacecraft from Sept. 5 to 7, 2015, showing the informally-named icy plain Sputnik Planum, the smooth, bright region across the center. NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute

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Write to Julia Zorthian at julia.zorthian@time.com