Afterglow of GRB 090429B (IMAGE) NASA/Goddard Space Flight Center Caption The afterglow of GRB 090429B (red dot, center) stands out in the in this optical and infrared composite from Gemini Observatory images. The red color results from the absence of visible light, which has been absorbed by hydrogen gas in the distant universe. Credit Gemini Observatory/AURA/Andrew Levan (Univ. of Warwick, UK) 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.