Tenerife LaPalma (image) University of Vienna Caption This is a long time exposure photography viewing from Tenerife to La Palma. A green laser beam indicates the free-space link between the two laboratories. Credit IQOQI Vienna Usage Restrictions The image may only be used with appropriate caption or credit. 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.