Loki's Castle (image) University of Vienna Share Print E-Mail Caption Here the Loki Archaeota were discovered: on the seabed at the Mid-Atlantic Ridge near the hydrothermal vents Loki's Castle. Credit Copyright: Centre for Geobiology, Bergen, Norway, by R.B. Pedersen Usage Restrictions The image may only be used with appropriate caption or credit Share Print E-Mail 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.