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Top / Science / Astronomy / History / Solar System

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Asteroid Discovery Circumstances
For each minor planet: Where and when found, and by whom.
Exploring the Moon
Timeline of Lunar exploration.
Exploring The Planets-Discovery
The five known in antiquity, three more since the telescope, and Ceres.
Neptune and Pluto
Mathematical discovery of planets
Orbits and Gravitation
The development of the mathematics of planetary motion.
Solar Astronomy
A timeline.
Solar System Astronomy
A timeline.
The Planet Mars: A History of Observation and Discovery
On-line version of the book by William Sheehan.
The Struggles to Find the Ninth Planet
A paper by Clyde Tombaugh relating his discovery of Pluto.

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