EXHIBIT 21 SPACEHAB, INCORPORATED AND SUBSIDIARIES SUBSIDIARIES OF THE REGISTRANT JURISDICTION OF NAME OF SUBSIDIARY INCORPORATION BUSINESS NAME - ---------------------------------- --------------- -------------------------- Astrotech Space Operations, Inc. Delaware Astrotech SPACEHAB Government Services, Inc. Colorado SPACEHAB Government Services Space Media, Inc. Delaware Space Media Space Store, LLC Delaware Space Store Astrotech Florida Holdings, Inc. Florida Astrotech Florida Holdings