New Horizons Discovers Methane 'Snow' on Pluto's Mountain Peaks

Methane “snow” on mountain peaks in the Cthulhu region of Pluto. The enhanced color version of the inset image is on the left and the false color version is on the right. The image covers an area 280 miles (450 kilometers) long by 140 miles (225 kilometers) wide. Image Credit: NASA/JHUAPL/SwRI

As the data […]

Pluto In All Its Glory: Stunning New Panorama From New Horizons Shows Mountains, Glaciers, and Hazes

Stunning new panorama of Pluto backlit by the Sun, showing the icy plains, rugged mountains, and hazes in the atmosphere. The image was taken only 15 minutes after closest approach by New Horizons. Image Credit: NASA/JHUAPL/SwRI

New images of Pluto from the New Horizons spacecraft were released today … and they are spectacular. The […]

New Study Helps Answer Mystery of What Happened to Mars' Early Atmosphere

Mars used to have a thicker atmosphere and water on its surface, but what happened to that atmosphere has been a mystery. New research may finally help answer that question. Image Credit: M. Kornmesser/ESO

The question of how Mars changed from a once wet world to the much colder and drier one we see […]

Muddy Mars: New Evidence for Liquid Water Flows Within Past Million Years

Illustration of debris flows inside Istok crater on Mars, which have provided evidence of large amounts of flowing water and mud in the past. The flows are very similar to ones on Earth in Arctic regions such as Iceland. Image Credit: Nature Communications

The fact that Mars used to have large amounts of liquid […]

Early Mars May Have Been Cold and Icy Rather Than Warm, According to New Study

Conceptual image of the two competing warm and cold models of early Mars. Image Credit: Robin D. Wordsworth

The debate over whether Mars used to be warmer and wetter or colder and wetter earlier in its history has been a long and contentious one. Now, a new study suggests it may be the latter, […]

NASA Selects Snow and Ice Distributed Active Archive Center Contract

Image Credit: NASA

NASA has selected the University of Colorado Boulder for the management and operations of the Earth Observing System Data and Information System Snow and Ice Distributed Active Archive Center.

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The Winds Still Blow in Thin but Active Martian Atmosphere

Mars’ atmosphere is much thinner now than it once was, but it still has clouds, as seen in this NASA photo, as well as fog, wind, dust storms and snow. Photo Credit: NASA/JPL

For any future astronauts who land on Mars, there is one piece of advice that shouldn’t even need to be said: […]