The low density of Kuiper Belt Object Arrokoth sheds light on the formation of planetesimals in the early solar system.
Geologically young regions of Pluto’s southern hemisphere were likely resurfaced by cryovolcanism, data from the New Horizons spacecraft reveal.
Unprecedented global climate model simulations, incorporating observational data from the New Horizons mission, reveal atmospheric circulations driven by a large ice cap on Pluto.
The New Horizons spacecraft recorded images of craters that imply an unexpected dearth of small objects in the Kuiper Belt.
Explore 10 things scientists have already learned about the most distant object visited by a spacecraft from Earth.
The flyby of Ultima Thule on New Year’s Day will give us our first glimpse of a mysterious Kuiper Belt object.
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.
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.
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.
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.