Measuring equipment (IMAGE) University of California - Riverside Caption Portable solar spectrometers measuring alongside a higher resolution solar spectrometer. Researchers performed side-by-side measurements before and after field campaigns to ensure instrument stability and check data quality. Photo taken at NASA's Armstrong Flight Research Center in Edwards, California. Credit Frausto-Vicencio/UCR Usage Restrictions None License Original 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.