(IMAGE) National Institutes of Natural Sciences Caption 60 percent of them have corresponding optical/infrared galaxies, whereas the remaining 40 percent are invisible in other wavelength. Credit ALMA (ESO/NAOJ/NRAO), NAOJ, Fujimoto et al. 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.