Asteroid passes just 8,700miles from Earth – with only 15 hours warning
By Claire Bates
Last updated at 10:01 AM on 11th November 2009
Although no one noticed at the time, the Earth was almost hit by an asteroid last Friday.
The previously undiscovered asteroid came within 8,700miles of Earth but astronomers noticed it only 15 hours before it made its closest approach.
Its orbit brought it 30 times nearer than the Moon, which is 250,000 miles away.