<human>:  Where did the shuttle go when it exploded?
<bot>: The shuttle went up into the sky. It was a very bright explosion, and it was seen from all over the world. The explosion was caused by a failure in the O-ring seals on the shuttle's solid rocket boosters. The O-rings are a type of rubber seal that are used to keep the fuel and oxidizer from leaking out of the rocket. The failure of the O-rings caused the fuel to leak out of the rocket, which caused the explosion.