Mars versus EarthToday:ErosionNext Unit:VolcanoesFaults and BoundariesOther Landforms Big Ideas:Rates of ChangeThe story of water and carbon
Essay:The above picture displays an alluvial fan-like structure. What planet is it found on, and how was it formed? Give evidence for your argument.
Our knowledge of the solar system is changing
Space travel is changing
Our knowledge of Mars is changing
Water on Mars
Deformation Bands of Mars and Earth(precursors of faults)"This study provides a picture of not just surface water erosion, but true groundwater effects widely distributed over the planet," said Suzanne Smrekar, deputy project scientist.
Martian pack ice (a)Earths Antarctica (b)
Counting of craters indicates Martian pole melted 20 million years ago. Liquid water once existed on the surface of Mars.
Erosion of Earth and MarsLayered Mesas (and their formation)Mass WastingCanals: wind or water?
"We're seeing what look like smaller sand bedforms on the tops of larger dunes, and, when we zoom in more, a third set of bedforms topping those," said HiRISE co-investigator Nathan Bridges of NASA's Jet Propulsion Laboratory in Pasadena, Calif. "On Earth, small bedforms can form and change on time scales as short as a day."
Mars had liquid water at its surfaceMars is subject to dust storms with fantastic winds