Nighthawk would fly to altitudes of up to 4,920 feet (1,500 meters) above the Martian average, covering distances of up to ...

Clouds of water ice can be seen drifting over ancient volcanoes on Mars. But billions of years ago, the surface was more temperate. Rock samples could tell us whether it supported ancient life.

Mars Express has revealed the dynamic landscape of Mars, showcasing both rugged terrain and smoother, younger plains on the ...

But beneath Antarctica’s frozen landscape, volcanoes quietly shape Earth's climate in surprising ways. Recent scientific studies reveal that melting ice sheets in West Antarctica might trigger ...

Some of the unusual rocks carry stories about water on Mars. One has hints of long-gone microbes. All tell of a dynamic, complex planet.

Seismic data from NASA’s InSight lander suggests liquid water may exist beneath Mars’ surface, supporting the potential for ...

One of the biggest challenges in predicting Antarctica's deeply uncertain future is understanding exactly what's driving its ...

This image from webcam footage provided by the United States Geological Survey (USGS) shows lava shooting up high during an ongoing eruption of Kilauea volcano inside Hawaii Volcanoes National ...