Sorry, I wasn't able to figure out where I first heard about the contamination concern with MSL. I think I may have heard it in a video interview, which makes i

Sorry, I wasn't able to figure out where I first heard about the contamination concern with MSL. I think I may have heard it in a video interview, which makes it nigh unsearchable. That said, a search of nasa.gov reveals several mentions of the use of a skycrane to reduce rocket exhaust contamination in relation to other missions, particularly ExoMars.