From Galilean Telescopes to Gravitational Waves

This chapter chronicles the evolution of astronomical observation, starting with Galileo Galilei's use of the telescope and moving towards modern advancements like gravitational waves and the Nancy Grace Roman Telescope. It discusses the implications of new technologies on our understanding of the universe, including techniques for discovering exoplanets and observing hydrogen emissions. The chapter also highlights collaborative efforts in projects like the Square Kilometre Array and explores the massive data generation that underpins contemporary astronomical research.