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 […]

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 […]