Uniformly bedded materials visible within western Medusae Fossae Formation

Uniformly bedded materials visible within western Medusae Fossae Formation

Uniformly bedded materials visible within western MFF (left) and near the top of the large central mound in Gale crater (right).  Portions of two HiRISE (High Resolution Imaging Science Experiment) frames.

This image illustrates a paper by Smithsonian scientists James R. Zimbelman and Stephen P. Scheidt, “Hesperian age for western Medusae Fossae Formation, Mars” scheduled for publication in the June 29 issue of the journal Science.