Neil deGrasse Tyson (IMAGE) American Institute of Biological Sciences Caption Host Neil deGrasse Tyson in COSMOS: POSSIBLE WORLDS. Credit Patrick McElhenney/FOX Usage Restrictions Request permission. 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.