DAVID PARKER / SCIENCE PHOTO LIBRARY DAVID PARKER / SCIENCE PHOTO LIBRARY
Observatory warning sign. Road sign warning car drivers not to introduce light pollution at the Las Campanas observatory, Chile. Bright lights from cars can interfere with the sensitive measurements being taken by the telescopes at the site. The site is operated by the Observatories of the Carnegie Institution of Washington (OCIW).
Model release not required. Property release not required.