Schumann Resonance (image) NASA/Goddard Space Flight Center Share Print E-Mail Caption Waves created by lightning flashes -- here shown in blue, green, and red -- circle around Earth, creating something called Schumann resonance. These waves can be used to study the nature of the atmosphere they travel through. Credit NASA/Simoes 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.