Asteroid the size of an aircraft carrier zips past earth

FRESNO, California

Experts estimated the closest it got to earth was 202-thousand miles away, at about 3:30 Tuesday afternoon.

If it hit, scientists say it could have blasted out a crater four miles across and 17-hundred feet deep and cause a tsunami 70 feet high.

Scientists discovered this asteroid six years ago and have been monitoring it.

Asteroids are leftovers from the formation of the solar system from about four and a half billion years ago.

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