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Copernicus, Nicolaus 1473-1543 Polish astronomer who advanced the heliocentric theory that the Earth and other planets revolve around the Sun. This was highly controversial at the time as the Ptolemaic view of the universe, which was the prevailing theory for over 1000 years, was deeply ingrained in the...
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www.nineplanets.org/help.html
www.nineplanets.org/help.html
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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 is a very comprehensive information site featuring the planets of our solar system (related items included).
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kids.nineplanets.org/
kids.nineplanets.org/
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A collection of many of the best images from NASA's planetary exploratio ... The collection has been extracted from the interactive program "Welcome to the Planets" which was distributed on the Planetary Data System Educational CD-ROM Version 1.5 in December 1995. It has also been updated with the addition of more recent images.
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pds.jpl.nasa.gov/planets/
pds.jpl.nasa.gov/planets/
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Solar System - Wikipedia, the free encyclopedia
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The Solar System consists of the Sun and those celestial objects bound to it by gravity, all of which formed from the collapse of a giant molecular cloud approximately 4.6 billion years ago....
en.wikipedia.org/wiki/Solar_System
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Interplanetary spacecraft have revolutionized planetary science. Very little of this document would have been possible without the space program. To explore the solar system offline, visit The Nine Planets Bookstore.
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dept.physics.upenn.edu/nineplanets/
dept.physics.upenn.edu/nineplanets/
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Views of the Solar System presents a multimedia adventure unfolding the splendor of the Sun, planets, moons, comets and asteroids. Discover the history of space exploration, rocketry, early astronauts, space missions, and a large image/video archive. ... Discover the latest scientific information, or study the history of...
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www.solarviews.com/eng/homepage.htm
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Eight known planets and their moons, along with comets, asteroids, and other space objects orbit the Sun. The Sun is the biggest object in our solar system. It contains more than 99% of the solar system's mass. ... Astronomers are now finding new objects far, far from the Sun which they call dwarf planets. Pluto,
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starchild.gsfc.nasa.gov/docs/StarChild/solar_system_lev...
starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/solar_system.html
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Eight planets have been discovered in our solar system. Mercury, Venus, Earth, and Mars are the planets closest to the Sun. They are called the inner planets. The inner planets are made up mostly of rock. The outer planets are Jupiter, Saturn, Uranus, and Neptune.
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starchild.gsfc.nasa.gov/docs/StarChild/solar_system_lev...
starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/planets.html
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