Insolation Animation (IMAGE) NASA/Goddard Space Flight Center Caption The Moon's shadow will dramatically affect insolation -- the amount of sunlight reaching the ground -- during the total solar eclipse. Credit NASA's Scientific Visualization Studio 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.