Which astronomer is credited with formulating the laws of planetary motion, describing how planets move in elliptical orbits around the sun?
AJohannes Kepler
BGalileo Galilei
CIsaac Newton
DNicolaus Copernicus
Explanation
Johannes Kepler, a German astronomer working in the early seventeenth century, is credited with formulating three fundamental laws of planetary motion, most notably establishing that planets travel around the sun in elliptical, rather than perfectly circular, orbits. His laws, developed through careful mathematical analysis of detailed astronomical observations, provided a significantly more accurate description of planetary motion than earlier models had offered. Kepler’s work later provided important groundwork that helped inform Isaac Newton’s subsequent development of the law of universal gravitation. Explore more Everyday Science MCQs on mcqstutor to keep practicing.

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