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Planet - Wikipedia
The first civilization known to have a functional theory of the planets were the Babylonians, who lived in Mesopotamia in the first and second millennia BC. The oldest surviving planetary astronomical text is the Babylonian Venus tablet of Ammisaduqa, a 7th-century BC copy of a list of observations of the motions of the planet Venus, that ...
The Nine Planets Astronomy for Kids
Welcome to The Nine Planets - For Kids! With permission from Bill Arnett, I've revamped his web site, The Nine Planets, for younger audience suitability (upper elementary grades).
The Nine Planets Solar System Tour
Information about each planet and moon in our solar system with many pictures, discussion of the history of its discovery, exploration, and physical characteristics.
Exoplanet Orbit Database | Exoplanet Data Explorer
The Exoplanet Data Explorer is an interactive table and plotter for exploring and displaying data from the Exoplanet Orbit Database.
The Extrasolar Planets Encyclopaedia
World's most comprehensive interactive database of extrasolar planets updated daily since 1995.
Exoplanet - Wikipedia
In the sixteenth century the Italian philosopher Giordano Bruno, an early supporter of the Copernican theory that Earth and other planets orbit the Sun (heliocentrism), put forward the view that the fixed stars are similar to the Sun and are likewise accompanied by planets.
NASA Telescope Reveals Record-Breaking Exoplanet Discovery
NASA's Spitzer Space Telescope has revealed the first known system of seven Earth-size planets around a single star. Three of these planets are firmly located in the habitable zone, the area around the parent star where a rocky planet is most likely to have liquid water.
Our Solar System - Science
Learn more about the celestial bodies that exist within our solar system.
WWF Footprint Calculator
WWF’s Footprint Calculator: how did we work it all out? × We hope you like our carbon footprint calculator, which we created with the Stockholm Environment Institute at the University of York and the University of Leeds.
Planets of Warhammer 40,000 | Warhammer 40k | FANDOM ...
This page presents an incomplete and select list of the more notable planets in the Warhammer 40,000 universe. No full list could ever be compiled because the Imperium of Man consists of over one million inhabited worlds, with many other habitable planets also populated by various intelligent...