Fibre optic research field site (IMAGE) Royal Astronomical Society Caption The researchers’ Gornergletscher field site in the Swiss Alps. Left is the glacier and right is their field camp, where the fibre optic interrogator was housed in a tent. Credit Dr Thomas Hudson 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.