Look in the sky for Delta IV Heavy rocket launch Tuesday night from Vandenberg Air Force Base

LOS ANGELES — The twice-delayed launch of a rocket carrying a reconnaissance satellite into orbit from Vandenberg Air Force Base in Santa Barbara County is scheduled Tuesday night, potentially giving the Southland a holiday-season aerial light show.
According to United Launch Alliance, it will try again to launch the rocket at 5:57 p.m. The Delta IV Heavy rocket will be carrying a secretive satellite for the U.S. National Reconnaissance Office.
Rocket launches from Vandenberg, particularly