UBVR and H(alpha) Photometry of H II Regions and OB Associations in Galaxies: A Test for a Variable IMF

UBVR Imaging of UV Bright Interacting Galaxies

UBVRI observations of southern hemisphere active stars. II - 1987 data

UBVRI photoelectric photometry of ten southern galaxies

UBVRI photometry of active galaxies. I - Observations

UBVRI Photometry of Spiral Galaxies in the Virgo and Fornax Clusters

UBVRI Photometry of the Globular Cluster NGC 6752

UFOs and Physical Sciences

UHF radar observation of strato-tropospheric transfers on the anticyclonic side of a jet streak

UK and ESA announce Beagle 2 inquiry - Investigation to learn lessons from Mars Lander

ULDB Mission Concepts for observing the Cosmic Microwave Background (CMB)

ULF waves in the low-latitude boundary layer and their relationship to magnetospheric pulsations: A multisatellite observation

ULIRGs at z=1.5 as Scaled up Spiral Disks

Ultimate IR horizon sensor

Ultra LI-ideals in lattice implication algebras and MTL-algebras

Ultra Long Period Cepheids: a primary standard candle up to the Hubble flow.

Ultra Long-Life Spacecraft for Long Duration Space Exploration Missions

Ultra-Deep KECK spectroscopy of early-type galaxies in GOODS-N

Ultra-high resolution, absolute position sensors for cryostatic applications

Ultra-high vacuum friction experiments to simulate material transfer and wear of the platinum-rhodium proof-mass used in the GRADIO accelerometer.