This photo is being shared with the following caption: During LA’s 1994 blackout, many citizens were frightened by their first-ever glimpse of the Milky Way galaxy
Photo copyright and credit: Thierry Cohen
This image is actually from Thierry Cohen’s series called Darkened Cities (Villes éteintes). Each image is a composite of two photographs: the city (shot in daylight) and the night sky.
Further reading: What Cities Would Look Like if Lit Only by the Stars via Wired.