A meteor is the most probable cause of a bright, colorful fireball witnessed by people in a wide swath of the southwestern United States, according to Don Yeomans, manager of NASA's Near-Earth Object Program Office at JPL. Residents from Southern California to Arizona to Las Vegas reported seeing a streak of light move rapidly from west to east around 7:45 p.m. PDT on Wednesday, Sept. 14. "We're virtually certain this bright display was caused by a meteor, probably the size of a baseball...
