Solar Flare on the Sun, Nov. 3, 2014 (IMAGE) NASA/Goddard Space Flight Center Caption NASA's SDO captured this image of a solar flare on the sun on Nov. 3, 2014. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however, when intense enough, they can disturb the atmosphere where GPS and communications signals travel. Credit NASA/SDO 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.