A grander canyon on Mars
Hebes Chasma reflects Red Planet’s active past
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2013/10/sci_visualized_opener.jpg?fit=860%2C460&ssl=1)
New images of Hebes Chasma (shown) from the European Space Agency’s Mars Express spacecraft suggest that massive landslides may have shaped the huge trough.
ESA, DLR, G. Neukum/Freie Universität berlin