NASA seeks help from sky watchers Published Feb. 14, 2003 HOUSTON (AFPN) -- NASA is still seeking help from the American public to supply video and still images of Space Shuttle Columbia on its return flight to Earth. There has been a great public response, officials said, but more material will help the investigation of the Columbia accident.Columbia glided across the western United States just before sunrise Feb. 1. The shuttle flew just north of San Francisco around 6:50 a.m. PST and broke up over eastern Texas around 8 a.m. CST. Any imagery, especially video, of the shuttle's path might aid in determining the cause of the accident.Media and private citizens who have video or still images of Columbia's entry path are encouraged to send them to investigators. Videotapes and photos will not be returned.You can e-mail digital images to: columbiaimages@nasa.gov/. Mail videotapes to: NASA Johnson Space Center, Mail Code JA17, 2101 NASA Road 1, Houston, Texas 77058For more information, call the Johnson Space Center Emergency Operations Center at (281) 483-3388.