Solar System History Astronomy

The Sun and its family.

• Top/Science/Astronomy/Solar System

• The Planet Mars: A History of Observation and Discovery - On-line version of the book by William Sheehan.
• Is Mars Habitable? - A. R. Wallace\\'s 1907 critique of Lowell\\'s Book "Mars and Its Canals"
• When Did the asteroids Become Minor Planets? - Discusses the discovery of the first asteroids, their designation as solar system planets, and their reclassification.
• The Struggles to Find the Ninth Planet - A paper by Clyde Tombaugh relating his discovery of Pluto.
• Neptune and Pluto - Mathematical discovery of planets
• Orbits and Gravitation - The development of the mathematics of planetary motion.
• Asteroid Discovery Circumstances - For each minor planet: Where and when found, history and by solar system whom.
• Exploring The Planets-Discovery - The five known in antiquity, three more since solar system the telescope, and Ceres.

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