Ten Years at Mars: Mars Reconnaissance Orbiter Celebrates a Decade of Discovery

Illustration of Mars Reconnaissance Orbiter (MRO) as it entered orbit ten years ago. Image Credit: NASA/JPL

The Martian rover Opportunity has become famous for its amazing longevity, but it is not the only one; orbiting spacecraft also usually enjoy long lifespans, and today the Mars Reconnaissance Orbiter is celebrating its 10th year exploring Mars […]

2015 in Review: A Year of Spectacular Planetary Missions and Discoveries

High-resolution view of Pluto from New Horizons, showing rugged mountains and vast icy plains. Image Credit: NASA/JHUAPL/SwRI

To say that 2015 has been a great year for planetary exploration would be an understatement, with fantastic new discoveries from around the Solar System. From our first ever close-up look at Pluto and its moons, to […]

The Saline Slopes of Mars: NASA Confirms Evidence for Flowing Liquid Water

False-color image of RSL on slopes in Hale crater. The blue color is thought not to be related to their formation, but instead are from the presence of the mineral pyroxene. The image is produced by draping an orthorectified (Infrared-Red-Blue/Green(IRB)) false color image (ESP_030570_1440) on a Digital Terrain Model (DTM) of the same site […]

Curiosity Finds First Evidence For Possible 'Continental Crust' on Mars

View of an igneous clast named Harrison, which is embedded in a conglomerate rock in Gale crater, and features elongated light-toned feldspar crystals. This mosaic is a combination of an image from Mastcam with higher-resolution images from ChemCam’s Remote Micro-Imager. Image Credit: NASA/JPL-Caltech/LANL/IRAP/U. Nantes/IAS/MSSS

The Curiosity rover, still roaming in Gale crater, has discovered […]

Just Add Water: Scientists Explain Saturn's Powerful Thunderstorms

A giant storm in Saturn’s northern hemisphere, which now extends around the planet, as seen by the Cassini spacecraft. Photo Credit: NASA/JPL-Caltech

Thunderstorms are a powerful force of nature, but the ones we experience on Earth are dwarfed by the ones on the gas giant planet Saturn. They are huge and can be larger […]

Strong Winds Explain Titan's Immense Dunes, According to New Study

Radar image of long lines of dunes on Titan. They can be up to 300 feet tall and hundreds of miles long. Image Credit: NASA/JPL–Caltech/ASI/ESA and USGS/ESA

Saturn’s largest moon Titan is one of the most Earth-like places in the Solar System, as least in terms of appearances, with its seas, lakes, and rivers […]

Plate Tectonics May Increase Chances for Life on Europa

Europa, with its subsurface ocean, and now evidence for plate tectonics, is a primary goal of exploration in the search for alien life. Processed image copyright: Ted Stryk. Image Credit: NASA/JPL-Caltech/Ted Stryk

Jupiter’s moon Europa is a fascinating little world, but particularly so for one reason: water. It’s deep alien ocean underneath the surface […]