The X-Ray-derived Cosmological Star Formation History and the Galaxy X-Ray Luminosity Functions in the Chandra Deep Fields
The X-rays From Cassiopeia's Lap
The Xenon Record of Double Beta-Decay and Element Synthesis
The XMM Large Scale Structure Survey
The XMM-Newton Deep Survey of the Lockman Hole
The XMM-Newton Galaxy Cluster Structure Legacy Project
The XMM-Newton Ω project
The XMM-Ω project: gas mass fraction shape in high redshift clusters
The XSINGS Survey: Project Overview and Early Results
The Y-ray sky as a measure of history.
The Yamato-74659 ureilite and some new findings on the Yamato achondritic pyroxenes
The Year of the Solar System: An E/PO Community's Approach to Sharing Planetary Science
The Yellow Cake
The Yermak Plateau in the Arctic Ocean in the light of reflection seismic data—implication for its tectonic and sedimentary evolution
The Yilmaz Cosmology
The young open clusters NGC 2244 and NGC 2264, revisited.
The young sun and the atmosphere and photochemistry of the early earth
The Young, Rapidly-Evolving Planetary Nebula He 3-1357
The Youngest Pre-Planetary Nebulae: An Optical Imaging and Spectroscopic Survey
The Zamama Thor region of Io: Insights from a synthesis of mapping, topography, and Galileo spacecraft data