Molecular Gas in NGC 253 (IMAGE) National Radio Astronomy Observatory Caption This is a three-dimensional rendering of carbon monoxide (CO) in nearby starburst galaxy NGC 253. Colors correspond to the intensity of emission -- and therefore amount of CO -- from red (faint) to purple (bright). Credit Erik Rosolowsky, Univ. Alberta 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.