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Astronomy & Space
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1. Solar System
Sun
Mercury
Venus
Mars
Asteroids
Jupiter
Saturn
Neptune
Uranus
Pluto
X
Comets
2. Earth
Core
Crust
Seasons
Time
The Earth's Moon
3. Astronomy
Stars & Constellations
Galaxies
Cosmology
Radio Astronomy
4. Space
Space Exploration
NASA
Astronaut
Space Shuttle
Astronomy from Space
Neptune
Neptune. Neptune is much further away from the Sun than Uranus and takes 165 years to complete a single orbit. Discovered in 1846, Neptune was predicted to exist in 1843.
See related topics and documents
http://kosmoi.com/Science/Astronomy/Solar/Neptune/
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Playing with Science!
Last updated:
12/06/2006