OK, definitely the #1 most fascinating thing from Dante Lauretta's opening OSIRIS-REx presentation: 11 times Bennu has erupted material from its surface, at a few cm/s to a few m/s, some of which ends up in bound orbits around Bennu. How!? Why!? #LPSC2019

— Emily Lakdawalla (@elakdawalla) March 19, 2019