SMALL EXPLORER PROGRAM (SMEX)The National Aeronautics and Space Administration (NASA) Office of Space Science is releasing a "DRAFT" Announcement of Opportunity (AO) for community review and comment for the next missions in the Small Explorer (SMEX) program. Selections of proposals through the final AO, once released, are intended to provide two mission launches by February 2008. A Mission of Opportunity, long duration balloon mission, or International Space Station payload, may also be selected. The science objectives covered by this AO include those in the currently defined Office of Space Science themes of the Astronomical Search for Origins, the Sun-Earth Connection, and the Structure and Evolution of the Universe. Participation is open to all categories of organizations, foreign and domestic, including industry, educational institutions, nonprofit organizations, NASA centers, and other Government agencies. NASA welcomes critical review and comment of this "DRAFT" AO, which will be available from August 12, 2002, through September 6, 2002, via the World Wide Web site: http://spacescience.nasa.gov . Send comments to Dr. Paul Hertz, Explorer Program Scientist, Astronomy and Physics Division, Code SZ, Office of Space Science, National Aeronautics and Space Administration, Washington, DC 20546-0001. Comments are preferred in writing and may be sent by fax or E-mail; FAX: (202) 358-3096; E-mail: [email protected]. The character string "SMEX DRAFT AO" (without quotes) should be included in the subject line of all transmissions. The identity of those submitting comments will be held in confidence.

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