Doctors at a small practice in Virginia got a big surprise when a tennis ball-sized meteorite punched a hole through their roof. No one was injured. Dr. Frank Ciampi says the rock struck the two-story building around 5:30 P.M. Monday in Lorton, about 20 miles (32 kilometers) southwest of Washington. He says they heard a loud bang and found the projectile punched through the roof and ceiling, raining down pieces of wood, plaster and insulation. The half-pound (quarter-of-a-kilogram) rock split into three chunks. Television station WUSA took it to the Smithsonian Institution's Museum of Natural History and experts confirmed it was a meteorite. They estimated it was traveling about 220 mph (354 kph) when it struck.
