Dan Rasmussen, Peter Buck Fellow at the Smithsonian’s National Museum of Natural History, collects volcanic ash samples ...Smithsonian
Dan Rasmussen, Peter Buck Fellow at the Smithsonian’s National Museum of Natural History, and Terry Plank, volcanologist...Smithsonian
Artist's impression of the white dwarf and red giant binary system following the nova outburst...Deutsches Elektronen-Synchrotron DESY
