''Halley the man orbits forever in the shadow of the unmatched Newton, but he was a gifted, original, versatile and productive scientist, and a human being as … He is also noted for his role in the publication of Isaac Newton’s Philosophiae Naturalis Principia Mathematica.   Foi amigo de Isaac Newton, e ajudou-o a publicar suas três leis da mecânica. Edmond Halley (Haggerston, 8 de novembro de 1656 — Greenwich, 14 de janeiro de 1742) foi um astrônomo e matemático britânico, célebre por ser o observador da órbita e decifrar o tempo do cometa Halley, em 1696. Did Newton Answer Halley’s Question? One of the most famous and consequential meetings in the history of science took place in the summer of 1684 when the young astronomer Edmund Halley paid a visit to Isaac Newton, during which Halley asked Newton what path a planet would follow if it were attracted toward the sun by a force proportional to the reciprocal of the squared distance. Edmond Halley, Edmond also spelled Edmund, (born Nov. 8, 1656, Haggerston, Shoreditch, near London—died Jan. 14, 1742, Greenwich, near London), English astronomer and mathematician who was the first to calculate the orbit of a comet later named after him.