article: Comet
links: Isaac Newton Astronomer Periodic comets Renaissance Edmond Halley Jupiter Comet Shoemaker-Levy 9 Shoemaker-Levy 9 Kuiper belt 1994 List of comets Tycho Brahe Comet Biela Jupiter (planet) Bayeux Tapestry Philosophiae Naturalis Principia Mathematica Halley's Comet Hale-Bopp