The mission has been regularly posting photos from earlier mission phases, when the lighting geometry was a bit better. I just love these views of gigantic boulders perched on the horizon. It’s possible to appreciate them aesthetically as well as like a scientist. How would a scientist look at these photos? Ask questions like: how varied are the boulder sizes? How varied are their shapes (angular or rounded), their reflectiveness (bright or dark), and their textures (monolithic, or made up of bits of other rock)? Do some of those differences trend together? Are there systematic variations, or are the varied boulders more randomly distributed? And, once in a while, even a scientist will ask herself: how cool is this, that we’re just a skyscraper’s height away from a bouldery asteroid that we’re preparing to land on? If you reeeeally like staring at Bennu’s boulders, you can help the mission out by mapping them! A citizen-scientist Bennu-mapping campaign is running through 10 July at Cosmoquest.