Exploration of Astrophysics: From Newton’s Law of Gravitation to General Relativity

Abstract

Science developments are cumulative, with each new discovery building on the foundations laid by previous knowledge, enabling further. This article discusses the evolution of how the reality of universe is gradually revealed. Where people first discussed about Geocentric and heliocentric models, continuing to the time where Kepler found Kepler’s three laws, then to Newton’s law of gravitation. Further, with Einstein building upon Newton’s law and finding general relativity, process of recognizing knowledges on black hole and gravitational waves is finally speeding up. In this article, the author will give a brief understanding about these topics above, including their scientific definitions, interesting stories, and their relations between each other. From ancient to present, this paper will explain in simple words that are easy to understand for most age groups, gradually bring people into the world of astrophysics. Ending with the discoveries of gravitational waves which human are still looking forward to further findings, this will surely expand the overall knowledge and understanding on astrophysics.