This lecture introduces Space Weather by tracing disturbances from the Sun to Earth. It explains how solar flares emit X-rays and EUV radiation (p.2–3), while CMEs launch energetic particles and magnetic structures into interplanetary space (p.5). The response of the magnetosphere through reconnection and particle acceleration (p.6) and the resulting auroral and ionospheric effects (p.9–11) are discussed in detail.

It further classifies space weather into three major categories — Radio Blackouts, Radiation Storms, and Geomagnetic Storms — highlighting their arrival times and technological impacts (p.15–16, p.20). The lecture connects these processes to real-world consequences such as satellite damage, radiation hazards, GPS disruption, and power grid failures (p.7–10), emphasizing the Sun–Earth coupling and its relevance to modern society.