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Pluto

On the left: a view of Pluto, as imaged by the New Horizons spacecraft. On the right: a close-up of an undulating region believed to have been formed by volcanoes that erupted icy material.
Posted inNews

Pluto’s Surface Was Recently Sculpted by Icy Volcanism

by Katherine Kornei 2 May 202217 February 2023

Geologically young regions of Pluto’s southern hemisphere were likely resurfaced by cryovolcanism, data from the New Horizons spacecraft reveal.

Sputnik Planitia, which features nitrogen ice plains on Pluto
Posted inResearch Spotlights

Clues to Pluto’s History Lie in Its Faults

by JoAnna Wendel 31 January 20221 February 2022

Studying geological features on Pluto’s surface can illuminate the ancient history of how the dwarf planet formed.

Figure showing the zonal winds in the upper atmosphere of Pluto as a function of season for three Pluto years.
Posted inEditors' Highlights

Capturing Pluto’s Heartbeat in a Computer

by Anni Määttänen 8 April 202017 February 2023

Unprecedented global climate model simulations, incorporating observational data from the New Horizons mission, reveal atmospheric circulations driven by a large ice cap on Pluto.

Illustration of an impact on Pluto
Posted inNews

Ancient Impact’s Seismic Waves Reveal Pluto’s Ocean, Core

by JoAnna Wendel 6 April 202017 February 2023

By modeling the waves produced by a massive, ancient impact, scientists have begun to unlock the secrets of Pluto’s interior.

Pluto’s Elliot crater and Virgil Fossae
Posted inNews

Ammonia Ice Deposits on Pluto Hint at Recent Cryovolcanism

by Kimberly M. S. Cartier 29 May 201923 January 2023

This discovery is the latest in a growing stack of evidence pointing to the presence of an ammonia-rich water ocean beneath Pluto’s icy crust.

Detail of craters on Pluto’s moon Charon
Posted inNews

Pluto’s and Charon’s Craters Reveal a Solar System Deficit

by Katherine Kornei 1 March 20196 January 2023

The New Horizons spacecraft recorded images of craters that imply an unexpected dearth of small objects in the Kuiper Belt.

Composite enhanced color images of Pluto (bottom right) and its moon Charon (top left), taken by NASA’s New Horizons in 2015.
Posted inNews

New Book Conveys Details and Flavor of First Mission to Pluto

by Randy Showstack 1 May 201817 November 2021

New Horizons principal investigator tells Eos that the mission has revolutionized our understanding of small planets.

Posted inNews

Pluto’s Features Receive First Official Names

by Kimberly M. S. Cartier 20 September 2017

Names of mountains, plains, valleys, and craters honor human and technological pioneers, Pluto scientists, and underworld mythology from around the world.

Pluto-atmosphere-haze
Posted inNews

Pluto Observers Find Possible Clouds, Remarkably Bright Surface

by JoAnna Wendel 19 October 20166 January 2023

Smudges on images could be clouds that form at dawn and dusk, scientists report, and measurements of high reflectivity of Pluto’s “heart” add new evidence of a geologically young surface.

This image of Pluto’s moon Charon was captured by NASA’s New Horizons spacecraft as it approached Pluto on 14 July 2015.
Posted inNews

Scientists Solve Charon's Red Mystery

by JoAnna Wendel 15 September 201625 October 2021

Why are Charon's poles dusted with reddish material?

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Features from AGU Journals

RESEARCH SPOTLIGHTS
Earth’s Future
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By Rachel Fritts

EDITORS' HIGHLIGHTS
AGU Advances
“How Do Atmospheric Rivers Respond to Extratropical Variability?”
By Sarah Kang

EDITORS' VOX
Reviews of Geophysics
“Rare and Revealing: Radiocarbon in Service of Paleoceanography”
By Luke C. Skinner and Edouard Bard

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