I / Survey.- I.1. Experimental and Theoretical Approach to Plasma Physics.- I.2. Plasma Phenomena in Laboratory and Space.- I.3. Field and Particle Aspects of Plasmas.- I.4. Present State of the Classical Theory.- I.5. Boundary Conditions. Circuit Dependence.- I.6. Cosmology and the Origin of the Solar System.- I.7. Aims of the Monograph.- II / Electric Currents in Space Plasmas.- II.1. Dualism in Physics.- II.2. Particle-Related Phenomena in Plasma Physics.- II.3. Magnetic Field lines.- II.4. Filaments.- II.5. Local Plasma Properties and the Circuit.- II.6. Electric Double Layers.- II.7. Field-Aligned Currents as 'Cables'.- II.8. An Expanding Circuit.- II.9. Different Types of Plasma Regions.- II.10. Cellular Structure of Space.- II.11. Fine Structure of Active Plasma Regions.- III / Circuits.- III.1. Importance of Electric Current Models.- III.2. The Auroral Circuits.- III.3. Rotating Magnetized Body Surrounded by a Plasma.- III.4. The Heliospheric Current System.- III.5. Circuits of Magnetospheric Tail, Comets, and Venus.- III.6. Magnetospheric Circuit.- III.7. Other Magnetospheres.- III.8. Solar Prominence Circuit and Solar Flares.- III.9. Solar Wind Acceleration.- III.10. Transfer of Energy from the Solar Core to the Aurora.- IV / Theory of Cosmic Plasmas.- IV.1. Classical Theory and Its Difficulties.- IV.2. Ionization.- IV.3. Cosmic Abundances and Differentiation.- IV.4. Turbulence.- IV.5. Flux Amplification.- IV.6. Critical Velocity.- IV.7. Dusty Plasma.- IV.8. Formation and Evolution of Interstellar Clouds.- IV.9. Ambiplasma.- IV.10. High Energy Phenomena.- V / Origin of the Solar System.- V.1. How We Can Reconstruct Earlier Epochs.- V.2. Sources of Information.- V.3. Impact of Magnetospheric Results.- V.4. Electromagnetic Effects Aiding the Formation andContraction of Clouds.- V.5. Chemical Differentation in the Primeval Cloud.- V.6. Intrinsically Produced Currents.- V.7. Band Structure and the Critical Velocity.- V.8. Solar System in Formation.- V.9. Hetegony and the 'Hetegonic Principle'.- VI / Cosmology.- VI.1. The State of Cosmology.- VI.2. Coexistence of Matter and Antimatter.- VI. 3. Annihilation as a Source of Energy.- VI.4. Hubble Expansion in a Euclidean Space.- VI.5. A Model for the Evolution of the Metagalaxy.- VI.6. Other Metagalaxies.- VI.7. Discussion.- VI.8. Conclusions.- References.