http://www.space.com, Robert Z. Pearlman
The gunshots were fired just before 11:00 a.m. EDT (1500 GMT) outside the Davidson Center for Space Exploration at the U.S. Space & Rocket Center in Huntsville, Ala. The shots may have been fired from a moving vehicle traveling along Interstate 565, which runs parallel to the booster's window-fronted building, according to the Huntsville Police Department (HPD).
"Preliminary information indicates that there were three rounds fired, hitting 30 to 100 feet [9 to 30 meters] apart, which leads us to believe they were fired from a moving vehicle on the interstate," HPD communications director Harry Hobbs wrote in an e-mail to collectSPACE.com.
"The rounds were likely fired from a rifle, judging from the velocity needed to penetrate the glass," Hobbs said.
Although the museum was open to visitors at the time, no one was injured. The Davidson Center, which has housed the 363-foot (111-meter) Saturn V since 2007, was closed for about two hours following the shooting