Project Gutenberg 2014-06-19 Public domain in the USA. 677 Galilei, Galileo 1564 1642 Galileo Galilei, G. (Galileo) Kepler, Johannes 1571 1630 Keppler, Johann Kepler, Jan Kepler, Johann Kepler, Iogann Kepler, John Kepler, J. (Johannes) Carlos, Edward Stafford 1842 1927 07005111 The sidereal messenger of Galileo Galilei : $b and a part of the preface to Kepler's Dioptrics containing the original account of Galileo's astronomical discoveries Wikipedia page about this book: https://en.wikipedia.org/wiki/Sidereus_Nuncius Produced by David Edwards, Turgut Dincer and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) "The Sidereal Messenger of Galileo Galilei" by Galileo Galilei is a scientific publication written in the early 17th century. This work details Galileo's groundbreaking astronomical discoveries made through his improved telescope, which revolutionized the study of the cosmos. The text focuses on various celestial phenomena, including the observation of the Moon's surface and his discovery of Jupiter's satellites, which played a vital role in advancing the Copernican model of the solar system. The opening of the text introduces Galileo's passion for celestial observation, sparked by the invention of the telescope. It recounts his early successes, detailing the construction of his own telescope and the clarity it provided in observing the Moon's rugged surface, which contradicted the long-held belief in its smoothness. Additionally, Galileo expresses excitement over his observations of four previously unknown celestial bodies orbiting Jupiter, which he names the "Medicean Stars." He invites fellow astronomers to verify his findings, setting the stage for a transformative period in astronomy that challenged existing paradigms regarding the structure of the universe. (This is an automatically generated summary.) file:///public/vhost/g/gutenberg/html/files/46036/46036-h/images/cover.jpg Reading ease score: 53.6 (10th to 12th grade). Somewhat difficult to read. en Astronomy -- Early works to 1800 Jupiter (Planet) -- Satellites QB Text Category: History - Early Modern (c. 1450-1750) Category: Science - Physics Category: Science - Earth/Agricultural/Farming 209450 2025-07-18T14:02:38.335254 text/html 186090 2024-10-24T08:09:58 text/html 541955 2025-07-18T14:02:43.120241 application/epub+zip 542489 2025-07-18T14:02:39.733250 application/epub+zip 114017 2025-07-18T14:02:38.706258 application/epub+zip 605231 2025-07-18T14:02:45.335297 application/x-mobipocket-ebook 581948 2025-07-18T14:02:42.163195 application/x-mobipocket-ebook 160596 2022-09-21T03:45:57.580173 application/x-mobipocket-ebook 194919 2025-07-18T14:02:37.950242 text/plain; charset=us-ascii 194782 2014-06-19T14:55:48 text/plain; charset=us-ascii 19467 2025-07-18T14:02:45.473228 application/rdf+xml 13936 2025-07-18T14:02:38.855267 image/jpeg 2146 2025-07-18T14:02:38.812233 image/jpeg 521129 2025-07-18T14:02:38.391260 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog en.wikipedia en.wikipedia