This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
La Posta Observatory. What In May NEL began construction of the La Posta AstroGeophysical Observatory shown at left on foot site in the Laguna Mountains miles east of San Diego The observatory played major role in solar radio mapping studies of environmental disturbances and development of solar optical videometer for microwave