Figure: HiRISE Comparison

The HiRISE camera will provide the highest-resolution images yet from martian orbit. These high resolution images will enable scientists to resolve 1-meter sized objects on Mars and to study the morphology (surface structure) in a much more comprehensive manner than ever before.

Credit: NASA/JPL-Caltech

http://mars.jpl.nasa.gov/mro/gallery/artwork/MRO_hirise.html