10 Doctor Who Fan Theories Better Than What We Got
4. River Song Blew Up The Tardis
The arc of Series 5 is about the Doctor's greatest enemies teaming up to put him in a prison called the Pandorica.
Their reasoning is a lot more selfless than you might think, as they have all received word that the TARDIS is going to explode, taking a considerable toll on the universe when it does so.
See, they're all nice guys really.
It turns out that it was the dastardly Silence who were responsible for the TARDIS explosion, as they were trying to prevent the Doctor from reaching Trenzalore and inadvertently causing the Time War II. The precise details of how they managed to blow up the TARDIS were never revealed, even though a solution was right there in front of Mr. Moffat.
What if one of the Silence creatures was onboard the TARDIS during The Pandorica Opens, and was using its powers of posthypnotic suggestion to brainwash River into blowing the machine up?
It's a theory that could definitely be true, but was never explicitly stated. Considering that River was conceived onboard the blue box, maybe destroying it would've gotten a bit too weird for her.