Using X-ray observations to identify the particle acceleration mechanisms in VHE SNRs and "dark" VHE sources

Using X-rays to Determine Which Compact Groups are Illusory

Using X-rays to Probe the Physical Properties of Astrophysical Dust

Using XML and Java for Astronomical Instrument Control

Using XMM-Newton to measure the spectrum of the Vela pulsar and its phase variation

Using {\sc top-c} for Commodity Parallel Computing in Cosmic Ray Physics Simulations

Usual and phantom scalar fields in five dimensions: compactification and flat thick brane solutions

UT2/Kueyen: a stellar astronomer's dream comes true.

Utilisation des intensités centrales des raies de Balmer pour déterminer les températures de surface, de brillance et le diamètre apparent de 33 étoiles

Utilization of electromagnetic detector for selection and detection of high-frequency relic gravitational waves

Utilization of GPS satellites for precise irradiation measurement and monitoring

Utilization of H-reversal Trajectory of Solar Sail for Asteroid Deflection

Utilization of photon orbital angular momentum in the low-frequency radio domain

Utilization of the electronic camera for the photometric measurement of close visual binaries.

Utilization of the European Hubble Space Telescope Science Data Archive

Utilizing Astroinformatics to Maximize the Science Return of the Next Generation Virgo Cluster Survey

Utilizing Astrometric Orbits to Obtain Coronagraphic Images

Utilizing Type Ia Supernovae in a Large, Fast, Imaging Survey to Constrain Dark Energy

UTM, a universal simulator for lightcurves of transiting systems

UU Aqr from high to low state