Black soot covers the SpaceX Falcon 9 first stage used to launch the Starlink 13 mission as seen in this image of the booster recovery operations at Port Canaveral on 22 October 2020. This booster has launched six times now; flying to the edge of space and back.
View photos of the Starlink 13 launch and of the booster recovery operations.
Categories: Space Age Bulletins
Range Tracking 
Great shot! You’d think they’d give it a wash 🙂
Unless there is an operational reason, they will leave it dirty to save time and money getting it ready to use again as soon as possible.