Dr. Marc Seigar is Professor and Head of the Department of Physics at the University of Minnesota Duluth and he has an adjunct position at the Arkansas Space Center. His research is focused on the structure, morphology and dynamics of galaxies and their dark matter halos and the nature of the dark matter particle.
You can follow him on twitter:
He is involved in the following projects:
The Arkansas Galaxy Evolution Survey (AGES)
DarkSide: A Dark Matter Detector
The Large Synoptic Survey Telescope (LSST)
The H-alpha Galaxy Survey (HaGS)
The SCUBA HAlf Degree Extragalactic Survey (SHADES)