Overview (IMAGE) Tokyo Institute of Technology Caption An overview of the past, present, and future of research on remotely detectable biosignatures. Credit Reprinted with permission from Astrobiology, published by Mary Ann Liebert, Inc., New Rochelle, NY. Usage Restrictions The image may only be used with appropriate caption and 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.