Update on TPF coronagraph polarization

Update: high-speed/high-volume radiometric testing of Z-technology focal planes

Updated Lunar Gravity Results From Kaguya (SELENE) and Historical Tracking Data

Updated lunar gravity results of Kaguya (SELENE) and new lunar gravimetry by inverse VLBI method for SELENE-2

Updated Overview of COS Performance

Updated Overview of STIS Performance

Updated Status and Performance for the Cosmic Origins Spectrograph

Updated Status and Performance for the Cosmic Origins Spectrograph

Updated Status and Performance of the Space Telescope Imaging Spectrograph

Updated Status and Performance of the STIS CCD

Updates to the optical alignment and test plan for the James Webb Space Telescope integrated science instrument module

Upgrade of the Atmospheric Visibility Monitoring system

Upgrading the controller of the fast tip-tilt tertiary mirror for the SOAR Telescope

Upgrading the Haystack radio telescope for operation at 115 GHz.

Uprated fine guidance sensor study

UPSO three channel fast photometer

Urban precipitation extremes: How reliable are regional climate models?

US and European Technology Roadmap for a Mid-infrared Space Interferometer

US in-space electric propulsion experiments

US/CIS integrated NTRE