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New Horizons

Image of Arrokoth showing the main geological features as well as total surface acceleration.
Posted inEditors' Highlights

A Glimpse at Planet Formation at the Dawn of the Solar System

by Matthias Grott 22 June 202221 December 2022

The low density of Kuiper Belt Object Arrokoth sheds light on the formation of planetesimals in the early solar system.

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

Katherine Kornei, Science Writer 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.

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.

Detail of craters on Pluto’s moon Charon
Posted inNews

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

Katherine Kornei, Science Writer 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.

2014 MU69 as imaged by the New Horizons spacecraft
Posted inNews

New Horizons Sends First Looks of 2014 MU69

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 4 January 20196 January 2023

Explore 10 things scientists have already learned about the most distant object visited by a spacecraft from Earth.

Artist’s conception of Ultima Thule
Posted inNews

New Horizons Spacecraft to Reach Farthest Body in Solar System Yet

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 28 December 20186 January 2023

The flyby of Ultima Thule on New Year’s Day will give us our first glimpse of a mysterious Kuiper Belt object.

Pluto-atmosphere-haze
Posted inNews

Pluto Observers Find Possible Clouds, Remarkably Bright Surface

JoAnna Wendel, freelance science writer and illustrator 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.

Posted inNews

World Without Time

by R. Cowen 31 December 20156 January 2023

On New Year's Day 2019, a spacecraft known for its historic flyby of Pluto will take an unprecedented look into the distant past by flying right up to a frozen remnant of the original solar system.

Posted inNews

Pluto: In the Icebox but Maybe Still Cookin'

by R. Cowen 9 November 20156 January 2023

New evidence of ice volcanoes and of middle-aged terrains on Pluto's surface suggests that the dwarf planet has remained geologically active ever since it first formed billions of years ago.

Posted inNews

New Spin on Pluto's Moons

by R. Cowen 9 November 20156 January 2023

Strangely speedy rotation rates of Pluto's tiny orbiting companions show up in a trove of images taken as the New Horizons spacecraft approached the dwarf planet last spring and early summer.

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EDITORS' VOX
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