Definition: Kepler, Johannes (1571-1630): German astronomer and mathematician. Considered a founder of modern astronomy, he formulated the famous three laws of planetary motion.
Kepler, Johannes (1571-1630)
by Nick Greene
for About.comFree Email Courses
Explore Space / Astronomy
Must Reads
About.com Special Features
A Smarter Future
Tips that will help finance your education, excel in the classroom, and advance your career. More >
How to Ace the GRE
Being well prepared is the first step; here are more essential suggestions. More >
©2009 About.com, a part of The New York Times Company.
All rights reserved.