The researchers posit that the volcano could have supported conditions favorable for life in the once-watery Jezero crater.

Several tons of trees, rock and mud blocked Magruder Road just ... the road and took out a section of the road. It’s quite a debris field.” McKay said the Bitterroot National Forest plans ...

The rock debris - and similar jumbles up and down the canyon - tell a story. It's a tale of a canyon slowly becoming wider as rocks slide away and break down - eventually to be carried away in ...