H_2 formation pumping signatures: a modellist's view
H_2 in the Quadrupolar Planetary Nebula NGC 6881
H_2 Line Emission Associated with the Formation of the First Stars
H_2 molecules in damped systems
H_2 Pure Rotational Lines in the Orion Bar
H_2 Quadrupole and H^+_3 Emission from Uranus: The Uranian Thermosphere, Ionosphere, and Aurora
H_2 Velocity Structure in the Molecular Outflow DR 21
H_2-bearing damped Lyman-alpha systems as tracers of cosmological chemical evolution
H_2CO in the Horsehead nebula
H_2D^+: a light on baryonic dark matter?
H_2O Activity of Comet Hale-Bopp
H_2O Ice in the Envelopes of OH/IR Stars
H_2O maser and a plasma obscuring torus in the radio galaxy NGC 1052
H_2O megamaser emission from FR I radio galaxies
H_2^{16}O and H_2^{18}O Maser Emission from Gas-Dust Clouds
H_2_ infrared line emission from S 140: a warm PDR.
H_2_O maser emission from irregular variables.
H_2_O maser emission from semiregular variables.
H_2_O masers without associated diffuse HII regions: an earlier evolutionary phase?
H_2_O^+^, CO^+^, and dust in Comet P/Swift-Tuttle.