Ancient Water World: Tectonics on Pluto's Moon Charon Point to Frozen Subsurface Ocean

Charon (upper left) and Pluto as seen by New Horizons on July 14, 2015. Photo Credit: NASA/JHUAPL/SwRI

Charon is Pluto’s largest moon and, despite being so cold and remote from the Sun, has been revealed to be a fascinating and active world, just like Pluto itself. Residing in the far outskirts of the Solar […]

'Cracked and Tipped Over' Pluto Has a Subsurface Ocean: New Evidence From New Horizons

View of Sputnik Planitia on Pluto. This vast region of nitrogen ice provides clues that a subsurface ocean of liquid water exists on Pluto. Photo Credit: NASA/JHUAPL/SwRI

Pluto, a tiny frigid world in the distant outskirts of the Solar System, has been full of surprises, as first revealed by the New Horizons spacecraft back […]

New Horizons Finds Evidence for Frozen Ocean Inside Pluto's Moon Charon

The canyons of Charon, some of which dwarf the Grand Canyon on Earth. Image Credit: NASA/JHUAPL/SwRI

One of the most surprising discoveries in recent years in the outer Solar System is that there are small moons which have oceans inside them. Jupiter’s moon Europa and Saturn’s moon Enceladus are now known to have global […]

A Moon Falling Apart: Grooves on Phobos Are a Sign of its Eventual Catastrophic Fate

The unusual grooves on Phobos’ surface, such as those on the left side of this image, are now thought to be caused by tidal stress. The large crater Stickney is in the upper portion of the image. Image Credit: NASA/JPL-Caltech/University of Arizona

Phobos is the largest of Mars’ two tiny moons, but 50 million […]

A Complex World: Pluto Discoveries Include Possible Ice Volcanoes, Varied Geology, and Weird Spinning Moons

Slide from the DPS meeting showing possible ice volcanoes on Pluto. Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute

Pluto is a small, cold world, but it is also turning out to be one of the most fascinating places in our Solar System – as reported today at the American Astronomical Society’s […]

New Horizons Conducts Final Course Correction for New Year's Day Flyby of Next KBO in 2019 

New Horizons has completed the four course corrections needed to send it on its way to its next target in the Kuiper Belt, 2014 MU69. Image Credit: NASA/JHUAPL/SwRI

After having completed a wildly successful flyby of Pluto and its moons, the New Horizons spacecraft was given a new target, much farther out in the […]

New Horizons Changes Course for Flyby of First Post-Pluto Destination on New Year's Day 2019

New Horizons has sped past the Pluto system and is now on its way to its next target in the Kuiper Belt, 2014 MU69. Image Credit: NASA/JHUAPL/SwRI

After having completed its successful encounter with Pluto and its moons last July, the New Horizons spacecraft is now setting its sights on its next target much […]

A Whole New World: Pluto Discoveries Published in New 'Science' Research Paper

High-resolution view of Pluto from New Horizons. The large smoother area of ice is the western lobe of the “heart” feature. Image Credit: NASA/JHUAPL/SwRI

It has been three months since the historic close flyby of Pluto by New Horizons, and new discoveries have been coming in quickly about this previously little-known world. The first […]

A Colorful World: New Images of Pluto Show Blue Skies and Red Water Ice

The blue skies of Pluto, as seen in this image from New Horizons. Pluto is backlit by the Sun, revealing the multilayered hazes in the atmosphere. Soot-like particles in the atmosphere scatter sunlight in a way that the atmosphere appears blue, similar to what happens on Earth. Image Credit: NASA/JHUAPL/SwRI

As new images and […]

'Snakeskin' and Methane Ice: Amazing New High-Resolution Images and Maps of Pluto From New Horizons

Extended color image showing the “snakeskin” terrain in the Tartarus Dorsa region, a mixture of blue-grey ridges and other reddish material. Image Credit: NASA/JHUAPL/SWRI

NASA released more new images of Pluto today, and, as has come to be expected, they are spectacular. The “snakeskin” image shows rippling terrain reminiscent of snakeskin or dragon scales, […]