Session Summary

Seyfert galaxies and ``Unified Scheme''

Sharp changes of solar wind ion flux and density within and outside current sheets

Shock and Discontinuities Analysis Tool (SDAT)

Shock Waves in Spiral Arms and Star Formation

Significant solar proton events, 1955-1969

Similarities and differences between heliosphere-geosphere couplings associated with the short and long lived subauroral ionospheric storms: November 2004, F2 region, North East Asia

Simulating the lunar geomagnetic variations

Simulation of Flux Emergence from the Convection Zone to the Corona

Simulation of hot oxygen effects on ground-based Fabry-Perot determinations of thermospheric temperatures

Simulation of the nonlinear evolution of the sporadic-E layer instability in the nighttime midlatitude ionosphere

Simulation Study of a Positive Ionospheric Storm Phase Observed at Millstone Hill

Simulations of plasma clouds in the midlatitude E region ionosphere with implications for type I and type II quasiperiodic echoes

Simultaneous EISCAT Svalbard radar and DMSP observations of ion upflow in the dayside polar ionosphere

Simultaneous middle and upper atmosphere radar and ionospheric sounder observations of midlatitude E region irregularities and sporadic E layer

Simultaneous total electron content and all-sky camera measurements of an auroral arc

Single-day dayside density enhancements over Europe: A survey of a half-century of ionosonde data

Singularities in Collapsing Stars and Expanding Universes

Small Current Sheets in the Solar Wind as the Cause of X-Ray Emission in Comets

Small Instruments for Space Physics