Looking at the serial photos of the event, the object is clearly there and the rocket explodes when it is right by it. Very strange. And Elon seems to agree: http://www.zerohedge.com/news/2016-09-11...-explosion "Important to note that this happened during a routine filling operation. Engines were not on and there was no apparent heat source," said Musk questioning how the rocket could spontaneously erupt in flames. "Particularly trying to understand the quieter bang sound a few seconds before the fireball goes off. May come from rocket or something else."