NASA's GRIP Mission Aircraft Investigate Hurricane Karl (image) NASA/Goddard Space Flight Center Share Print E-Mail Caption NASA's GRIP Hurricane Mission WB-57 and DC-8 aircraft are seen in this image flying into Hurricane Karl on Friday, Sept. 17 to collect valuable data on the storm. More information about GRIP: www.nasa.gov/grip. Credit NASA Usage Restrictions None Share Print E-Mail 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.