Cosmic-Ray Neutron Soil Moisture Sensor (IMAGE) Arizona State University Caption This is a cosmic-ray neutron soil moisture sensor that was used to measure the average soil moisture of the entire watershed, Chihuahuan Desert, New Mexico. Credit ASU Usage Restrictions None License Licensed content 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.