That feature is Athabasca Valles, a system of valleys carved into volcanic plains on Mars. The Athabasca Valles system offers key insights into the history of water on the Red Planet, and its ...

Chile's most emblematic volcanoes can be found in the Atacama Desert. Licancabur Volcano, with its height exceeding 5,900 ...

(European Space Agency via AP) Cameras also captured views of neighbouring volcanic plains and Mercury’s largest impact crater, which spans more than 930 miles. This was the sixth and final ...