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Probe sends amazing pics of Pluto and Nix

Image: Pluto surface
The New Horizons probe got a look at these craters during its July 14 Pluto flyby. (Credit: NASA / JHUAPL / SwRI)

The hits just keep on coming from NASA’s New Horizons mission to Pluto: This week’s stunners include views of the surface that look weirder than the terrain in “Star Wars: The Force Awakens,” plus a close look at Nix, one of Pluto’s five moons.

During its July 14 flyby, the piano-sized New Horizons spacecraft captured a string of pictures showing the eastern edge of a dark region nicknamed Cthulhu Regio and apotential ice volcano called Wright Mons. You can also see light-colored craters that have been partially filled in with darker material.

“Pluto has greatly exceeded our expectations in diversity of land forms and processes — processes that continue to the present,” New Horizons team member Alan Howard, a planetary scientist from the University of Virginia at Charlottesville, said in Thursday’s update from NASA.

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New Horizons’ Pluto close-up gets colorized

Image: Pluto in color
This enhanced color mosaic combines image data from two cameras on NASA’s New Horizons probe. (Credit: NASA / JHUAPL / SwRI)

The Pluto pictures from NASA’s New Horizons probe just keep getting better and better: Feast your eyes on this colorized view of the border between the towering al-Idrisi mountains made of water ice, and the rippled nitrogen-rich plains of Sputnik Planum.

The view combines high-resolution black-and-white imagery from New Horizons’ Long Range Reconnaissance Imager, or LORRI; and lower-resolution color data from the Ralph/Multispectral Visible Imaging Camera, or MVIC.

The two sets of images were taken about 25 minutes apart on July 14, while the piano-sized probe zoomed within 10,000 miles of the dwarf planet’s surface. Check out the full-size mosaic.

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NASA probe delivers Pluto’s closest close-up

Image: Pluto heart
A heart-shaped patch of nitrogen-rich ice (outlined in red) lies next to a mountain range on Pluto, as seen in a picture from NASA’s New Horizons probe. (Credit: NASA / JHUAPL / SwRI with heartification by Vicknesh Selvamani / @Vicknesh96)

If you heart Pluto, you’ll love the sharpest, closest close-up of the dwarf planet, just sent back by NASA’s New Horizons probe.

The images, captured from a distance of 10,000 miles during the July 14 flyby, include a heart-shaped block of nitrogen-rich ice right on the edge of the big heart-shaped region known informally as Tombaugh Regio.

You can also see the craggy blocks of water ice that form the al-Idrisi mountains, bull’s-eye impact craters on Sputnik Planum, and ripples and layers in Pluto’s icy crust. The pictures have a maximum resolution of 250 feet per pixel, which is less than the length of a football field.

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Get an all-around view of Pluto and Charon

Pluto views
An array of images shows Pluto from all sides, as seen by NASA’s New Horizons probe over the course of one full Plutonian day (6.4 Earth days) from July 7 to 13. (Credit: NASA / JHUAPL / SwRI)

The bright heart of Pluto has been burned into our consciousness, thanks to scads of high-resolution pictures. But a new set of images from NASA’s New Horizons mission provides an all-around view of the dwarf planet, including the splotchy shapes that went out of view days before the time of closest approach on July 14.

Another 10-picture set shows Pluto’s biggest moon, Charon, from all sides.

The imagery was captured over the course of a full Plutonian day, which is 6.4 Earth days long. New Horizons’ Long Range Reconnaissance Imager and the Ralph / Multispectral Visible Imaging Camera were trained on the icy worlds as the distance to Pluto decreased from 5 million miles on July 7 to 400,000 miles on July 13.

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Pluto probe sees evidence of ice volcanoes

Image: Piccard Mons
A color-coded topographical map, based on New Horizons data, shows Piccard Mons on the surface of Pluto. The mountain’s structure suggests that it’s an ice volcano. (Credit: NASA / JHUAPL / SwRI)

Scientists with NASA’s New Horizons mission say that at least a couple of the miles-high mountains on Pluto look as if they’re ice-belching volcanoes, providing further evidence that the dwarf planet is geologically active.

Although the case for cryovolcanoes isn’t yet rock-solid, it’s the “least weird explanation” for the observations of 2-mile-high Wright Mons and 3-5-mile-high Piccard Mons, said Oliver White of NASA’s Ames Research Center, a member of the mission’s geology team.

If the mountains’ status is confirmed, “that would be one of the most phenomenal discoveries of New Horizons,” White told reporters. “Whatever they are, they’re definitely weird.”

Image: Wright Mons
Like Piccard Mons, Wright Mons has a summit depression that suggests it’s an ice volcano on Pluto. (Credit: NASA / JHUAPL / SwRI)

Pluto’s potential status as a volcanic world was just one of the revelations that came to light on Monday during a review of New Horizons’ latest discoveries at the annual meeting of the American Astronomical Society’s Division for Planetary Sciences in National Harbor, Md.

“The New Horizons mission has taken what we thought we knew about Pluto and turned it upside down,” Jim Green, director of planetary science at NASA Headquarters, said in a news release about the findings.

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Pluto’s dog-bone moon poses a puzzle

Kerberos
This image of Kerberos was created by combining four individual images from New Horizons’ Long Range Reconnaissance Imager that were captured on July 14, approximately seven hours before the spacecraft’s closest approach to Pluto, at a range of 245,600 miles (396,100 kilometers) from Kerberos. The image has bee processed to recover the highest possible resolution. (Credit: NASA / JHUAPL / SwRI)

NASA’s New Horizons probe has finally filled out its family portrait of Pluto and its moons – and Kerberos, the last moon to get its closeup, turns out to be nothing like what scientists expected.

Before the piano-sized spacecraft’s July flyby, an analysis of Kerberos’ gravitational influence on Pluto’s four other moons suggested that it had some heft. But the fact that it was so dim led the mission team to conclude it must have a dark surface. Otherwise, why would an object so large reflect so little light?

It turns out that Kerberos is almost as tiny as Pluto’s smallest moon, Styx. Like Styx, Kerberos’ surface appears to consist of relatively clean water ice, making it bright enough to reflect about half of the sunlight it receives.

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Forbes

Find the people in the ‘Pluto Time’ picture

"Pluto Time" mosaic
A mosaic showing the New Horizons probe’s view of Pluto is made up of thousands of images sent in by fans of the “Pluto Time” project. The tiny red box near the center highlights a picture of Pluto discoverer Clyde Tombaugh. (Credit: NASA / JPL)

During the buildup to the big Pluto flyby in July, the team behind NASA’s New Horizons mission launched a campaign to show regular folks what time of day during earthly twilight was as bright as high noon on the dwarf planet – and asked them to send in their “Pluto Time” selfies. Now those pictures have been assembled into mosaics that show off the shades of Pluto and its largest moon, Charon.

If you look closely at the blown-up view of Pluto, you’ll find a bonus: a portrait of Clyde Tombaugh, the self-taught astronomer who discovered the dwarf planet in 1930.

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Science gives Pluto its day in the sun

Image: Pluto's edge
NASA’s New Horizons probe captured this backlit image of Pluto as it flew past the dwarf planet on July 14. Scattered sunlight reveals numerous haze layers within Pluto’s thin atmosphere, while the surprisingly diverse surface landscape indicates ongoing geological activity. (Credit: NASA / JHUAPL / SwRI)

The first peer-reviewed scientific paper about the New Horizons probe’s July flyby past Pluto lays out puzzling evidence that suggests the dwarf planet isn’t frozen in time. Rather, its smooth plains, high mountains and nitrogen glaciers are leading the NASA mission’s researchers to suspect that it’s geologically active even now.

“Pluto’s still got an engine, and it’s still running,” principal investigator Alan Stern of Southwest Research Institute told journalists in advance of the paper’s publication today by the journal Science.

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Pluto pics reveal blue glow – and water ice

Image: Blue Pluto
A picture from NASA’s New Horizons probe reveals the blue color of Pluto’s atmospheric haze, as seen in a backlit view. (Credit: NASA / JHUAPL / SwRI)

The latest pictures from NASA’s New Horizons mission to Pluto reveal for the first time that the backlit dwarf planet is surrounded by a beautiful blue glow – and also pinpoint the location of water ice deposits exposed on the surface.

Thursday’s images were released after a hubbub that suggested an “amazing” discovery would be revealed this week. Although the hype got a bit out of control, the revelations really do raise intriguing questions about Pluto’s weather and geology.

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Universe Today

New Horizons mission picks post-Pluto target

Image: New Horizons and KBO
An artist’s conception shows the New Horizons spacecraft flying past a Pluto-like object in the Kuiper Belt, the ring of icy material that lies billions of miles away from the sun. (Credit: Alex Parker / NASA / JHUAPL / SwRI)

NASA and the science team behind the New Horizons mission to Pluto and beyond have settled on the popular choice for the spacecraft’s next flyby: It’s 2014 MU69, an icy object a billion miles beyond Pluto that’s thought to be less than 30 miles (45 kilometers) wide.