The launch does not happen as expected

What happens in this video ?

Explosion of a rocket launched from Cap Canaveral (Florida).

Comments

mike
Niagara Falls

(Usa)
u all fucked up they just diead
16th January, 2008
Andrew
Melbourne

(Australia)
What goes up sure went up.
26th March, 2007
Jaina
Wow what an awesome explosion.
15th July, 2006
bshgghh
Jhmnj

(.lk,n)
that is a waste of the US's money.
18th June, 2006