Professor in Astrophysics, Emeritus, University of Colorado Boulder
My research interests include multi-wavelength observations of high redshift galaxy clusters to measure dark matter mass distributions and quantify the effects of environment on galaxy formation and evolution. I am also a co-editor of the Journal of Skyscape Archaeology and develop educational materials on cultural astronomy.
South Africa’s plan to move away from coal: 8 steps to make it succeed
Germany lowers voting age to 16 for the European elections
IceCube researchers detect a rare type of energetic neutrino sent from powerful astronomical objects