Our cover picture ...
…shows images from the NASA Earth Observatory by Joshua Stevens and Lauren Dauphin, using CALIPSO data from NASA/CNES, MODIS and VIIRS data from NASA EOSDIS LANCE and GIBS/Worldview and the Suomi National Polar orbiting Partnership, as well as GOES imagery courtesy of NOAA and the National Environmental Satellite, Data, and Information Service (NESDIS).
Credits: NASA/JPL. Several Earth observation satellites collected data during and after the massive explosion, which triggered a tsunami and hurled volcanic material high into the stratosphere. See also the article on page 166 in this issue