Dr. Mark Boslough is a physicist who received a BS from Colorado State University in 1977, and a PhD from Caltech 1983. He worked at Sandia National Laboratories from 1983 until his retirement in 2017. He currently teaches at University of New Mexico and chairs the Asteroid Day Expert Panel. His research includes: Comet Shoemaker-Levy 9, Libyan Desert Glass, the 1908 Tunguska explosion, the 2008 TC3 airburst over Sudan, and Jupiter impacts of 2010 and 2012. Dr. Boslough also coauthored the US National Academies report “Defending Planet Earth” in 2010. His simulations of the 2013 Chelyabinsk airburst were featured in a NOVA documentary and appeared on the covers of Nature and Physics Today. He has contributed impact simulations for disaster-planning exercises and has appeared in dozens of science documentaries with location filming in Siberia, the Sahara Desert, and other locations. Asteroid 73520 Boslough (2003 MB1) is named after Dr. Boslough.