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.
Electricity from farm waste: how biogas could help Malawians with no power
What the Supreme Court is doing right in considering Trump’s immunity case
US student Gaza protests: five things that have been missed
Will Solomon Islands’ new leader stay close to China?
IceCube researchers detect a rare type of energetic neutrino sent from powerful astronomical objects