NASA Institute for Advanced Concepts (NIAC) was a NASA-funded program that was operated by the Universities Space Research Association (USRA) for NASA from 1998 until its closure on 31 August 2007. NIAC sought proposals for revolutionary aeronautics and space concepts that could dramatically impact how NASA developed and conducted its missions. It provided a highly visible, recognizable, and high-level entry point for outside thinkers and researchers. NIAC encouraged proposers to think decades into the future in pursuit of concepts that would "leapfrog" the evolution of contemporary aerospace systems. While NIAC sought advanced concept proposals that stretch the imagination, these concepts were expected to be based on sound scientific principles and attainable within a 10 to 40-year time frame.
NASA, faced with the constraints of achieving the Vision for Space Exploration, has made the difficult decision to terminate NIAC, which has been funded by NASA since inception. Effective August 31, 2007, the NIAC will cease operations.[1]