The purpose of this monograph is to organize and present, for effective use in design, the significant experience and knowledge accumulated in operational programs to date.

By their challenging nature, NASA programs are particularly demanding of technological input. Meeting the aeronautical and space goals of the past four decades has necessitated leading edge advancements across a diverse spectrum that embraces virtually every scientific and technological discipline.

The purpose of this monograph is to organize and present, for effective use in deign, the significance experience and knowledge accumulated in development and operational programs to date. It reviews and assesses current design practices, and from them establishes firm guidance for achieving consistency in design, increased reliability in the end product, and greater efficiency in the design effort.

The purpose of this monograph is to organize and present, for effective use in design, the significant experience and knowledge accumulated in development and operational programs to date. it reviews and assesses current design practices, and from them establishes firm guidance from achieving in the design effort.

The Gamma-ray Large Area Space Telescope is an international and multi-agency space mission that will study the cosmos in the energy range 10 KeV - 300 GeV.

This curriculum guide uses hands-on activities to help student and teachers understand the significance of space-based astronomy- astronomical observation made from outer space.

President Clinton has called technology "the engine of economic growth." It is a key element in attaining one of the major goals enunciated by the President: reinvigorating American competitiveness in the global marketplace. Technological innovation is today the principal currency of international competition.