The National Aeronautics and Space Administration (NASA)/George C. Marshall Space Flight Center (MSFC) is hereby cancelling the previously posted sources sought notice pertaining to the development of state-of-the-art X-ray grazing incidence optics in a conventional Wolter-I Optical system (i.e. mirrors, optical mounts) using space qualified optical materials with demonstrated precision manufacturing and alignment capability that can ultimately achieve arc-sec angular resolution in a relative space environment; effective immediately.  

No solicitation exists; therefore, do not request a copy of the solicitation. If a solicitation is released, it will be synopsized on SAM.gov.  Interested firms are responsible for monitoring this website for the release of any solicitation or synopsis.