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,
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,
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.