Ion-acoustic velocity in the auroral E-region according to EISCAT measurements in April 1988

Ion-cyclotron noise excitation in the topside ionosphere according to observations at the Intercosmos-14 satellite

Ionic structure near an auroral arc

Ionization and electric field properties of auroral arcs during magnetic quiescence

Ionization by high-energy protons and electrons in the polar ionosphere according to data of rocket experiments

Ionization effects due to solar flare on terrestrial ionosphere

Ionization ledge structures observed in the equatorial anomaly region by using PPS system on-board the Ohzora (EXOS-C) satellite

Ionization of the Lower Martian Atmosphere by Bursts of Astrophysical Gamma-rays

Ionizing nightglow - Sources, intensity, and spatial distribution

Ionopause features of Mars as observed by the radio science experiment MaRS on Mars Express

Ionopause Features of Mars as observed by the Radio Science Experiment MaRS on Mars Express

Ionopause features of Mars as observed by the radio science experiment MaRS on Mars Express

Ionopause Features of Mars as Observed by the Radio Science Experiment MaRS on Mars Express

Ionopause Features of the Martian ionosphere as observed by the Radio Science Experiment MaRS on Mars Express

Ionosonde observations of pulsating auroras

Ionosonde observations of the northern magnetospheric cleft during December 1974 and January 1975

Ionosphere modelling for Galileo single frequency users: Illustration of the combination of the NeQuick model and GNSS data ingestion

Ionosphere of Venus - First observations of the dayside ion composition near dawn and dusk

Ionosphere of Venus - First observations of the effects of dynamics on the dayside ion composition

Ionosphere research