The latest on NewScientist 'bout Endurance crater is here.

..."The first image of the interior of the crater was released on Monday. It was taken when the rover was 20 metres away from the western rim of the Endurance crater on 29 April. But since then the rover has edged even closer and now sits just 50 centimetres from the precipice, which slopes downward at an angle of 18°."

18 degrees...that's ~ 34% grade. Steep, but not crazy steep.

"The rover will skirt the entire rim of the crater in the next few weeks, snapping images and studying its rocks and soil. "We may look for some locations where we can dip a toe in and get up a little bit closer to some of the formations close to the crater rim," Wallace said. "

Will it go left, or right?