Mission to Mars

For decades, orbiting spacecraft have provided scientists with tantalizing images of water-carved landforms on Mars, but many details of the story of water on the Red Planet are locked up in the rocks littered across its surface. The Mars Exploration Rover mission is studying a variety of rocks and soils to determine the role water has played in the history of the planet and to search for evidence of environmental conditions that might once have been suitable for life.

Evidence of Ancient Water at Gusev Crater

In August of 2004, based on data received from the Spirit rover, scientists announced that they believe water once flowed through the rock outcrop dubbed “Clovis” and that interaction with liquid water changed the composition of the rocks. Previous discoveries at Gusev Crater found evidence of only small amounts of water activity. This discovery suggests the presence of much more water in this region of Mars at some point in the planet’s past. Learn more by clicking on the images below.

Evidence of Ancient Water at Meridiani Planum

In March of 2004, based on data received from the Opportunity rover, scientists announced that they believe the rock outcrop at “Eagle Crater” was originally laid down in a gently flowing body of water. Learn more about this discovery by clicking on the images below.