When choosing a landing site for Curiosity, the mission focus was on selecting a site that was likely to have interacted with water. Of the four sites that were candidates for the mission, each had unique properties that may have hinted at water in the past...
  • Large deposits of clay: Clay only forms after long term interaction between water and rock.
  • Land formations: Canyons or craters that could have likely been carved out by rivers and lakes
  • Deltas: Large 'fans' that could potentially be the result of rivers or floods depositing mud and silt as they flow into a lake
  • Layered Rocks: Layered rock gives observers access to a record of time for how rock deposits were formed. This may show us older deposits formed by oceans, that eventually dried up over time.
Match each of the four Curiosity landing site candidates with their primary feature.
Eberswalde Crater
Gale Crater
Mwarth Vallis
Holden Crater
1: Eberswalde Crater
2: Gale Crater
3: Mwarth Vallis
4: Holden Crater