Artist's Impression of Pulsating Star (IMAGE) University of Sydney Caption An artist's impression of the star with its tidally locked red dwarf companion. Credit Gabriel Pérez Díaz (IAC) Usage Restrictions For this story only 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.