HELIOS 1 + HELIOS 2 - A summary of IMF observations performed in the inner solar system during 1975-1981

Heliospheric coordinate systems

Heliospheric magnetic fields and plasmas

Helium Abundance of the Sun

HF pump-induced large scale radial drift of small scale magnetic field-aligned density striations

High energy cosmic ray intensity variations associated with the unusual Forbush decrease of August 1972

High Resolution Spectroscopy

High-altitude signatures of ionospheric density depletions caused by field-aligned currents

High-energy gravitational antennas - A theoretical approach

High-energy hadron background in proton decay experiments

High-latitude thermospheric vertical wind activity from Dynamics Explorer 2 Wind and Temperature Spectrometer observations: Indications of a source region for polar cap gravity waves

High-Precision Tests of General Relativity

Higher-order corrections to the relativistic perihelion advance and the mass of binary pulsars

Horizontal plasma flow velocities in the ionosphere of Mars - A test case for the solar wind interaction

How are Neutron Stars Formed?

How Now, No Cosmological Helium?

How to Find Young Galaxies

How to Use Magnetic Fields for Fun and Profit

http://www.esa.int/esaSC/Pr_22_2004_s_en.html

Hubble Space Telescope observations of sulfur ions in the Io plasma torus: New constraints on the plasma distribution