title: Astronomy. Calibrating asteroid impact.
authors.affiliation: Department of Space Studies, Southwest Research Institute, 1050 Walnut Street, Suite 300, Boulder, CO 80302, USA.
authors.forename: Clark R
authors.initials: CR
authors.lastname: Chapman
mesh_terms: D000059:Accidents; D000388:Air; D005107:Explosions; D019110:Meteoroids