The UCAM CCD system of LAMOST
The UCL CCD-based image photon counting system
The UCSD/MIT hard X-ray and low energy gamma ray experiment for HEAO-A
The UCSD/MIT hard X-ray and low energy gamma-ray experiment for HEAO-1 - Design and early results
The UKIRT centre section structural investigation
The ultra high resolution XUV spectroheliograph: An attached payload for the Space Station Freedom
The Ultraviolet Imaging Telescope - Design and performance
The Ultraviolet Spectrograph (UVS) on Juno
The Ultraviolet Spectrometer and Polarimeter on the Solar Maximum Mission
The ULYSSES Jupiter flyby - The scientific results
The Unique Optical Design of the CTI-II Survey Telescope
The University of Arizona/Lockheed Martin Conceptual Study of the NGST Science Instrument Module
The University of Durham Mark 6 VHE gamma ray telescope
The University of Hawaii Wide-Field Imager
The Upper Atmosphere Research Satellite (UARS)
The Upper Limit of Energy Density of Nanoporous Materials Functionalized Liquid
The Upper Stage Responsiveness Study
The use of a VLT for studying interstellar matter and extended objects
The Use of Closed Cycle Coolers on Space Based Observatories
The use of EUMETSAT cloud mask product for astronomical site testing