Introduction To Astrophysics - SS3 Physics Lesson Note

Astrophysics is a branch of astronomy that applies the principles of physics to the study of celestial objects and phenomena. It involves the study of the physical and chemical properties of celestial bodies, their behaviour and interaction with each other, and the universe as a whole.

Astrophysicists use a range of techniques to observe and measure astronomical phenomena, including telescopes, satellites, and computer simulations. They investigate objects such as stars, galaxies, black holes, and other exotic objects, as well as phenomena such as cosmic rays, gravitational waves, and the structure and evolution of the universe.

Astrophysics has made important contributions to our understanding of the universe, including the discovery of dark matter and dark energy, the development of the Big Bang theory, and the study of the formation and evolution of galaxies. It has also led to the development of new technologies, such as space telescopes and high-performance computing systems.