Mike Ramsey, a professor and vulcanologist at the University of Pittsburgh, is among 22 scientists being featured during April’s Earth Month for Know Your Earth 3.0, Local Connections, a partnership between 22 of NASA’s Earth-observing missions that nominated a scientist or engineer to be featured on NASA websites during April 2013. Ramsey uses data from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on board Terra.