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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 20222 May 2022

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.

‘Oumuamua已经在星际空间中游荡了数百万年
Posted inResearch Spotlights

‘Oumuamua可能是类冥王星系外行星的冰碎片

by Sarah Stanley 28 June 202128 September 2021

研究人员认为氮冰是最可能构成这一神秘星际物体的物质。

‘Oumuamua has tumbled through interstellar space for millions of years.
Posted inResearch Spotlights

‘Oumuamua May Be an Icy Fragment of a Pluto-Like Exoplanet

by Sarah Stanley 19 May 202128 September 2021

Researchers favor nitrogen ice as the most likely material for the mysterious interstellar object’s composition.

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 20208 March 2022

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 November 2021

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 2019

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 201917 November 2021

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.

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