GPS Used to Discover Rise of Bedrock in Antarctica (image) Ohio State University Share Print E-Mail Caption Terry Wilson, professor emeritus of earth sciences at The Ohio State University, assembles a GPS antenna on a monument fixed to bedrock. This GPS unit is at Westhaven Nunatak in the Transantarctic Mountains. Credit The Polar Earth Observing Network Usage Restrictions None 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.