The Solar Weather/Solar Activity Monitoring and Forecast.- Using CME Observations for Geomagnetic Storm Forecasting.- Solar Activity Monitoring.- Modeling of Solar Energetic Particles in Interplanetary Space.- Simulating CME Initiation and Evolution: State-of-the-art.- Signatures of the Ancient Sun Constraining the Early Emergence of Life on Earth.- The Sun’s Interaction with the Earth’s Thermosphere and Climate System.- Solar Variability and Climate.- Influence of Solar Activity Cycles on Earth’s Climate.- Unravelling Signs of Global Change in the Ionosphere.- Thermosphere Density Model Calibration.- Numerical Space Weather Prediction: Can Meteorologists Forecast the Way Ahead?.- Ionosphere/Positioning and Telecommunications.- Space Weather Influence on Satellite-based Navigation and Precise Positioning.- New improvements in HF Ionospheric Communication and Direction Finding Systems.- Short-Term fo F2 Forecast: Present Day State of Art.- Manifestation of Strong Geomagnetic Storms in the Ionosphere above Europe.- Effects of Scintillations in GNSS Operation.- Radiation Environment of the Earth–Spacecraft and Aircraft Environment.- Complementarity of Measurements and Models in Reproducing Earth’s Radiation Belt Dynamics.- Radiation Effects on Spacecraft and Countermeasures, Selected Cases.- Aircraft Crew Radiation Exposure in Aviation Altitudes During Quiet and Solar Storm Periods.- The Magnetic Environment – GIC and other Ground Effects.- Geomagnetic Indices in Solar-Terrestrial Physics and Space Weather.- The Value of Real-time Geomagnetic Reference Data to the Oil and Gas Industry.- Spatiotemporal Characteristics of the Ground Electromagnetic Field Fluctuations in the Auroral Region and Implications on the Predictability of Geomagnetically Induced Currents.- Finnish Experiences with Grid Effects of GIC’s.