Ice? https://space.stackexchange.com/questions/21784/what-did-crs-11-stage-1-encounter-at-t602 https://space.stackexchange.com/questions/21784/what-did-crs...

Ice? https://space.stackexchange.com/questions/21784/what-did-crs-11-stage-1-encounter-at-t602 https://space.stackexchange.com/questions/21784/what-did-crs... I think what is happening is that the optics of the lens on the camera make it seem like it comes from well below the rocket itself.