Solar Terrestrial Physics explores the dynamic interactions between the Sun and Earth's environment. This course offers an in-depth understanding of the Sun and its role in shaping interplanetary space, where solar winds and magnetic fields influence planetary systems. Students will delve into the physics of geospace, focusing on Earth's magnetosphere and its responses to solar activity. A critical component of the course will be the study of dynamo action, which underpins the generation of magnetic fields in celestial bodies. The ionosphere, a vital layer of Earth's atmosphere, will be analyzed for its structure, behavior, and role in radio communication. Finally, the phenomenon of whistlers, electromagnetic waves propagating through the magnetosphere, will be explored, shedding light on the intricate connections between space and terrestrial physics. This comprehensive course combines theoretical principles with observational insights to equip students with a robust foundation in this interdisciplinary domain.