MMI Corporation of Baltimore, MD USA has provided educational materials and equipment for Astronomy and Earth Science  for the past 40 years. Included are: Portable planetariums, inflatable and fiberglass domes, observatory domes, audio-visual materials (CD Roms, DVDs, etc.) teaching aids, celestial and terrestrial globes, models, murals, 35mm slides and books, much not available elsewhere. Please visit  our web site and web store at www.mmicorporation.com.  Products  include  MMI,  GENESIS, CANOPUS and COSMODYSSEY planetarium   projectors   and domes,   POLARIS observatory domes, BLUE PLANET globe,   GEOCHRON  time  indicators, REPLOGLE globes,  among others  We are a major supplier of  portable planetariums and observatory domes. Tel: 001 410 366 1222   Fax: 001 410 366 631