Haze samples (IMAGE) University of California - Santa Cruz Caption Researchers measured the refractive indices at visible wavelengths (n) for haze samples created under a range of conditions. Credit Yu et al., Nature Astronomy, 2021 Usage Restrictions For use only with news coverage of this research 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.