Originally Posted by THEHANDOFOMEGA:
“Why did the tardis explode?
Who was saying silence will fall
Why did River end up back on earth in 2010 when they said in the episode People will go back to where they belong?”
The TARDIS exploded because the person that said "silence will fall" took over it and MADE it explode.
We will find out in Series 6.
We will PROBABLY find out in Series 6. But I'm guessing what the other guy said is right...she belongs with the doctor. Also, she could have travelled easily.
EDIT: Watch confidential. Moffat explains that River came to the church to remind Amy to remember the Doctor.