Concordia (IMAGE) Università Ca' Foscari Venezia Caption Panoramic view of the Concordia station on the Antarctic plateau during the "sun dog" phenomenon, a peculiar solar halo occurring in polar regions. Credit CNR-Isp Usage Restrictions No restrictions. License Public Domain 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.