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Evidence for Ancient Glaciation on Pluto

Washboard Terrain on Pluto

A letter authored by SETI Institute scientist Oliver White was published by Nature Astronomy today. Co-authors included researchers Jeff Moore, Tanguy Bertrand and Kimberly Ennico at NASA's Ames Research Center in Silicon Valley.

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Pluto's Moon Charon Gets First Official Feature Names

Charon

Legendary explorers and visionaries, real and fictitious, are among those immortalized in the first set of official surface-feature names for Pluto's largest moon, Charon.

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New Horizons Captures Record-Breaking Images in the Kuiper Belt

With its Long Range Reconnaissance Imager (LORRI), New Horizons has observed several Kuiper Belt objects (KBOs) and dwarf planets at unique phase angles, as well as Centaurs at extremely high phase angles to search for forward-scattering rings or dust.

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Does New Horizons' Next Target MU69 Have a Moon?

Scientists were already excited to learn this summer that New Horizons' next flyby target - a Kuiper Belt object a billion miles past Pluto - might be either peanut-shaped or even two objects orbiting one another.

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An Orbital Dance May Help Preserve Oceans on Icy Worlds

Heat generated by the gravitational pull of moons formed from massive collisions could extend the lifetimes of liquid water oceans beneath the surface of large icy worlds in our outer solar system, according to new NASA research.

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Let's Name MU69 After One Of Earth's Greatest Challenges

NASA and the SETI Institute are about to complete a competition wherein people get to suggest names for MU69 - the distant body that New Horizons will fly by in January 2019.

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Pluto's Hydrocarbon Haze Keeps Dwarf Planet Colder Than Expected

The gas composition of a planet's atmosphere generally determines how much heat gets trapped in the atmosphere.

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Dwarf Planet Haumea Has A Ring System

Ten observatories in six European countries teamed up for recent observations of a stellar occultation by the dwarf planet Haumea, which surprisingly show a narrow and dense ring orbiting the dwarf planet.

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Video Depicts Flyover Of Pluto

In July 2015, NASA's New Horizons spacecraft sent home the first close-up pictures of Pluto and its moons - amazing imagery that inspired many to wonder what a flight over the distant worlds' icy terrain might be like.

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Video Depicts Flyover Of Pluto's Moon Charon

The flight over Charon begins high over the hemisphere New Horizons saw on its closest approach, then descends over the deep, wide canyon of Serenity Chasma.

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Moon Discovered Orbiting Dwarf Planet 2007 OR10

The combined power of three space observatories, including NASA's Hubble Space Telescope, has helped astronomers uncover a moon orbiting the third largest dwarf planet, catalogued as 2007 OR10.

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ALMA Investigates DeeDee - 2014 UZ224

Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have revealed extraordinary details about a recently discovered far-flung member of our solar system, the planetary body 2014 UZ224, more informally known as DeeDee.

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What Would It Be Like to Actually Land on Pluto?

What would it be like to actually land on Pluto? This movie was made from more than 100 images taken by NASA's New Horizons spacecraft over six weeks of approach and close flyby in the summer of 2015.

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New Insight Into Pluto's Bladed Terrain

Using a model similar to what meteorologists use to forecast weather and a computer simulation of the physics of evaporating ices, scientists have found evidence of snow and ice features on Pluto that, until now, had only been seen on Earth.

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Modeling Pluto's Icy Heart

Pluto's "icy heart" is a bright, two-lobed feature on its surface that has attracted researchers ever since its discovery by the NASA New Horizons team in 2015

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Pluto's Icy Slushy Heart

Beneath Pluto's "heart" lies a cold, slushy ocean of water ice, according to data from NASA's New Horizons mission.

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New Horizons: Possible Clouds on Pluto, Next Target Is Reddish

The next target for NASA's New Horizons mission -- which made a historic flight past Pluto in July 2015 -- apparently bears a colorful resemblance to its famous, main destination.

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New Evidence Suggests Pluto has a Subsurface Ocean

Ever since NASA's New Horizons spacecraft flew by Pluto last year, evidence has been mounting that the dwarf planet may have a liquid ocean beneath its icy shell.

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Explaining The Red Color On Charon

In June 2015, the cameras on NASA's approaching New Horizons spacecraft first spotted the large reddish polar region on Pluto's largest moon, Charon.

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Pluto's Methane Snowcaps

The southernmost part of Pluto that NASA's New Horizons spacecraft could "see" during closest approach in July 2015 contains a range of fascinating geological features, and offers clues into what might lurk in the regions shrouded in darkness during the flyby.

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New Horizons Observes Quaoar

NASA's New Horizons is doing some sightseeing along the way, as the spacecraft speeds toward a New Year's Day 2019 date with an ancient object in the distant region beyond Pluto known as 2014 MU69.

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New Dwarf Planet 2015 RR245 Discovered

An international team of astronomers have discovered a new dwarf planet orbiting in the disk of small icy worlds beyond Neptune.

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Dwarf Planet Makemake Has A Moon

A Southwest Research Institute-led team has discovered an elusive, dark moon orbiting Makemake, one of the "big four" dwarf planets populating the Kuiper Belt region at the edge of our solar system.

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Pluto May Have A Subsurface Ocean

When the NASA's New Horizons spacecraft buzzed by Pluto last year, it revealed tantalizing clues that the dwarf planet might have -- or had at one time -- a liquid ocean sloshing around under its icy crust.

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Secrets Revealed from Pluto's Twilight Zone

NASA's New Horizons spacecraft took this stunning image of Pluto only a few minutes after closest approach on July 14, 2015.

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Convection Could Produce Pluto's Polygons

On Pluto, icebergs floating in a sea of nitrogen ice are key to a possible explanation of the quilted appearance of the Sputnik Planum region of the dwarf planet's surface.

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2007 OR10 Is The Largest Unnamed World in Our Solar System

Dwarf planets tend to be a mysterious bunch. With the exception of Ceres, which resides in the main asteroid belt between Mars and Jupiter, all members of this class of minor planets in our solar system lurk in the depths beyond Neptune.