[Timesink]

There are two bright lights in a dark sky...suddenly, the one that is following looks as if it suffers an explosion and then you can see a contrail. Did anyone else see the report who can explain it to me?

My barely-informed speculation would be simply that some piece of the shuttle broke off and thus of course, immediately lost most of its forward thrust and ended up behind the rest of the craft.

[ResistorSister]

OK...sounds good.

I was curious about the video because it seems as if the video was taken while the shuttle was still in space...because the sky is black...and the piece that might have broken-off is as large (it seems from the video) as the shuttle...that was one heck of a big piece that might have broken-off.