Diagram of Atmosphere Layers (IMAGE) NASA/Goddard Space Flight Center Caption A layer of charged particles, called the ionosphere, surrounds Earth, extending from about 50 to 400 miles above the surface of the planet. Credit NASA's Goddard Space Flight Center/Duberstein 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.