The University of Mexico's Institute of Meteoritics (IOM) claims to be the first institution in the world dedicated to the study of meteorites. The website features the Institute's Electron Microbeam Facility, Secondary Ion Mass Spectrometry Laboratory, and the High Pressure and High Temperature Experimental Petrology Laboratories. Users can search through an online database of the Meteorite Museum's meteorite collection, which contains samples of over 600 meteorites. Researchers can discover the Institute's current research ventures such as the geochronology of planetary materials and studies dealing with planetary magmas at high pressure. Students and educators can learn the six identifying characteristics of meteorites. This site is also reviewed in the April 2, 2004 _NSDL Physical Sciences Report_.