What was Isaac Newton's major contribution to science?

Isaac Newton's major contribution to science, particularly recognized in the realm of physics, is the discovery of gravity. His formulation of the law of universal gravitation described how objects attract one another with a force that depends on their masses and the distance between them. This groundbreaking idea not only provided clarity on why objects fall towards the Earth but also influenced the understanding of celestial bodies and their movements, leading to significant advancements in both mathematics and astronomy.

Newton's work laid the foundation for classical mechanics, and his publications, particularly "Philosophiæ Naturalis Principia Mathematica," established principles that are still fundamental to physics today. This achievement marks a pivotal moment in scientific history, solidifying Newton's status as one of the key figures in the Scientific Revolution.