'MythBusters' misfire sends cannonball through neighborhood

A cannonball fired by the "Mythbusters" TV show plowed through a Northern California house, struck the roof of another house and smashed through a minivan's window in a science experiment gone wrong.

The mishap occurred Tuesday while the Discovery Channel show was testing out whether other materials are just as effective as a cannonball when fired from a cannon.

Instead, the mythbusters learned how effective a cannonball can be when it misses its intended target, according to KGO-TV San Francisco.

PHOTOS: 'Mythbusters' cannonball experiment goes astray

The cannonball was fired from a bomb range in Dublin, about 35 miles east of San Francisco in Alameda County. It was supposed to hit trash cans but instead soared 700 yards into the home of a sleeping couple, leaving a 10-inch hole in the bedroom wall.

The cannonball was traveling as fast as a bullet. It exited the house, bounced across four lanes of traffic,  struck the roof of another house and then smashed through the window of a parked minivan.

No one was injured. 

Neighbors said "MythBusters" often tries its experiments in the area, and they have grown used to hearing explosions.

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-- Angel Jennings

Photo: A Dublin police officer stands near the exit hole Tuesday of a cannonball after it traveled through a house. Credit: Doug Duran / Associated Press