An Unexpected Rocket Plume over San Francisco . ... Credit Copyright: Abe Blair ( Abe Blair Gallery ) Explanation: What is that unusual light in the sky? ... It appeared just as the astrophotographer and his friend were photographing the Golden Gate Bridge in San Francisco, California against a more predictable night sky. ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ... A service of: LHEA at NASA / GSFC . ...