Mars continues to fascinate us with its mysteries, and the European Space Agency's (ESA) ExoMars Trace Gas Orbiter (TGO) is ...

Snow dots the Martian landscape in these images from ESA's Mars Express orbiter and NASA's Mars Reconnaissance Orbiter.

Scientists think that billions of years ago, the atmosphere of Mars was much denser and warm enough to form rivers, lakes, and perhaps even oceans of water. As the planet cooled and lost its ...

Structures inside walled compounds,’ he added, pointing to high-quality images ... life on Mars. Space officials have ...