When the celebrated German astronomer, Johannes Kepler (1571–1630), lost his first wife to cholera in 1611, he set about finding a new wife using the same methodical thoroughness and careful …

Dec 23, 2025 · Johannes Kepler, German astronomer who discovered three major laws of planetary motion. His discoveries turned Nicolaus Copernicus’s Sun-centered system into a dynamic universe, …

Dec 4, 2021 · Who was Johannes Kepler and what did he discover? Find out in our guide to the revolutionary German astronomer.

Aug 30, 2023 · Johannes Kepler (1571-1630) was a German astronomer and mathematician most famous for creating what was up to that point the most accurate model of planetary astronomy with …

During this time Kepler was having his Tabulae Rudolphinae ("Rudolphine Tables") printed, the new tables, based on Tycho Brahe's accurate observations, calculated according to Kepler's elliptical …

Johannes Kepler (December 27, 1571 – November 15, 1630), a key figure in the scientific revolution, was a German Lutheran, a mathematician, astrologer, astronomer, and a professionally trained …

On May 28, 1607 Kepler used his newly devised camera obscura to observe the solar disk and saw a sunspot, which he mistook for a transit of Mercury, to the amazement of later astronomers who all …

Aug 23, 2024 · Best known for formulating Kepler’s laws of planetary motion, he described how planets orbit the sun in elliptical paths rather than perfect circles, revolutionizing our understanding of the …

Nov 11, 2025 · Without data of such precision to back up his solar hypothesis, Kepler would have been unable to discover his “first law” (1605), that Mars moves in an elliptical orbit.

Johannes Kepler was a German mathematician and astronomer who discovered that the Earth and planets travel about the sun in elliptical orbits. He gave three fundamental laws of planetary motion.