HiRISE: Surprising landslump in Melas Chasma

HiRISE has been monitoring the recurring slope lineae (RSL) over the mid-latitude and equatorial regions of Mars. One of these sites is a crater on the floor of Melas Chasma; and an animation shows how the RSL follow the sun, changing slope aspect with the seasons. In one of our most recent images of this site, there was a surprise: a new dark streak just down slope from the RSL… [More at link]