The hydrogen coma of Comet Halley before perihelion: Preliminary observations with dynamics Explorer 1
The hydrogen coma of Comet P/Halley observed in Lyman-alpha using sounding rockets
The Hydrogen Content of Lunar Soils
The Hydrogen Exospheric Density Profile Measured with ASPERA-3/NPD
The hydrogen ortho-to-para ratio in the stratospheres of the giant planets
The hydrogen-deficient irregular variable star V348 SGR
The hydrolysis and precipitation of Pd(II) in 0.6 mol kg-1 NaCl: A potentiometric, spectrophotometric, and EXAFS study
The hydroxyl radical as an indicator of SEP fluxes in the high-latitude terrestrial atmosphere
The Hyper-Cortex of Human Collective-Intelligence Systems
The HyperLeda project en route to the astronomical virtual observatory
The Hyperluminous Infrared Galaxy IRAS 09104+4109: An Extreme Brightest Cluster Galaxy
The Hypersonic Pre-X Vehicle: Current Status
The Hypothesis of Additional Acceleration in the Motion of Comet Harrington-Abell from Jupiter
The I-band Metallicity-Luminosity Relation as Measure of Galaxy Evolution
The I-Xe chronometer.
The IBEX Background Monitor
The IBIS Gamma-Ray telescope on INTEGRAL
The ice and silicate spectral features for dust aggregates.
The ice record of greenhouse gases
The ICE spectrograph for PEPSI at the LBT: preliminary optical design