Interferometric Fringes (IMAGE) National Radio Astronomy Observatory Caption This graph shows a plot of a single channel of the ALMA correlator output as a function of time, when observing Mars. Credit ALMA (ESO/NAOJ/NRAO) Usage Restrictions With credit 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.