A -- GAMMA RAY LARGE AREA SPACE TELESCOPE -- ANNOUNCEMENT OF OPPORTUNITY The National Aeronautics and Space Administration (NASA) is releasing a NASA Announcement of Opportunity (AO 99-OSS-03) entitled Gamma Ray Large Area Space Telescope (GLAST). GLAST is a new space mission for observing high-energy gamma-rays from celestial objects. Science investigations using GLAST are solicited both for investigations that propose the development of flight instruments for GLAST and for investigations that do not. NASA intends to select a single investigation proposing development of a Large Area Telescope and approximately four investigations which do not propose the development of flight instruments. NASA may select one or more investigations proposing development of secondary instruments. GLAST is not an approved program. GLAST is currently in Phase A (Concept Study) and will seek a new start in Fiscal Year 2002. The GLAST launch is currently planned for 2005. Participation is open to all categories of organizations, foreign and domestic, including educational institutions, industry, nonprofit organizations, NASA centers, and other Government agencies. This solicitation will be open through October 21, 1999. Upon the release date, specific guidance for proposal preparation will be available via the World Wide Web site: http://spacescience.nasa.gov. For those not having access to the Internet, a printed copy may be requested and inquiries of a scientific or technical nature should be directed to Dr. Donald Kniffen, GLAST Program Scientist, Research Program Management Division, Code SR, National Aeronautics and Space Administration, Washington, DC 20546-0001. Inquiries are preferred in writing and may be sent by fax or E-mail (Note: The E-mail subject field must include the character string "GLAST AO" (without quotes)). E-mail: dkniffen@hq.nasa.gov; Phone: 202-358-0351; FAX: 202-358-3097. This notice constitutes a broad agency announcement as contemplated in FAR 6.102(d)(2). WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/HQ/date.html#AO-99-OSS-03. E-MAIL: Dr. Donald Kniffen, dkniffen@hq.nasa.gov. Posted 07/19/99 (D-SN355824).

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