Light Pollution Impact 2 (IMAGE) GFZ Helmholtz-Zentrum für Geoforschung Caption Light Pollution Impact 2 – From excellent dark sky (left) to inner city sky (right) Credit NOIRLab/NSF/AURA, P. Marenfeld Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.