The Asteroid Apophis is named after the Egyptian demonic serpent-spirit of destruction.
Approaching the earth tonight, scientists have been monitoring its movements to help predict its path in the future.
In 2029 it is expected to fly past the Earth at a distance of 30,000 km, with a one in 250,000 chance it could hit Earth in 2036.
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Rescue workers are at the site Sunday morning trying to cut open mangled coaches.
Despite chilly temperatures it will be a mostly dry day, and milder than yesterday.
The Sunday Times alleges a missile malfunctioned after launch during a routine test of the UK's nuclear deterrent last year.