Atmospheric Layers (IMAGE) University of Washington Caption STRIVE proposes to launch a satellite that takes a sideways view of Earth’s atmosphere, at what is sometimes called “Earth’s limb.” This photo of Earth’s limb was taken Feb. 12, 2020, from the International Space Station. The central dark band is smoke from summer wildfires in Australia. The smoke layer has reached the stratosphere, at 25 to 30 kilometers elevation, lofted to record heights during the wildfires by pyrocumulus clouds. If the STRIVE satellite receives final funding from NASA, its instruments would observe these processes in much greater detail than is possible today. Credit NASA Usage Restrictions No restrictions. License Public Domain 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.