Bridging the Atmospheric Divide

Abstract
The mesosphere and lower thermosphere have long suffered from their inaccessibility to research balloons and satellites alike. As a result, basic knowledge about this central region of the atmosphere is limited. In his Perspective, Jarvis describes how ground-based, satellite, rocket, and modeling efforts are shedding new light on this region, which is important for detecting climate change, for understanding vertical transport processes in the atmosphere, and for aerospace technology.