While not the closest encounter with an asteroid (See a previous article on this subject), Earth has still dodged another proverbial astronomical bullet when it comes to larger asteroid collision courses. This was the closest encounter with an asteroid this large in 35 years, another close encounter with an object this size (that we know of at this time) will not occur again until 2028. Scientist have said that if this particular object had struck the Earth it would have created a crater 4 miles wide and around 1700 feet deep. The size of a crater created by such an impact depend on many factors such as angle of trajectory, density and composition and where they strike on the Earth.
Asteroid 2005 YU55 ended up coming within 201,700 miles (324,600 kilometers) of Earth, closer than originally predicted. This occurred at 6:28pm EST (2328 GMT) Tuesday evening, then continued on its way at 29,000 mph (46,700 kph). As noted in our previous article, this rock was about 1300 feet (400 meters) wide. Check out the video clip after the break...
Here is a short video clip from CBSNewsOnline showing the exact trajectory of the object:
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