The United States Naval Observatory
The U.S. Naval Observatory is the preeminent authority in the areas of precise time and astronomy.
http://www.usno.navy.mil/
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astronomy
science
time
weather
reference
space
government
observatory
navy
oceanography
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ScienceWorld
Comprehensive online encyclopedias of astronomy, math, physics, scientific biographies, and scientific books, with many equations and formulas.
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science
reference
physics
chemistry
math
education
encyclopedia
astronomy
mathematics
research
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Sky View Cafe - Astronomy - Star Charts - Ephemeris - Planetarium
Java applet that lets you use your web browser to see many types of astronomical information, in both graphical and numerical form.
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astronomy
science
reference
space
planetarium
sky
stars
java
online
software
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Skymaps.com - Publication Quality Sky Maps & Star Charts
Offers free sky maps of the northern and southern hemispheres for stargazing purposes.
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astronomy
space
maps
science
stars
reference
map
free
education
sky
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A Review of the Universe
02. Observable Universe and Beyond. 03. Superclusters. 04. ... 15. Elementary Particles and the World of Planck Scale. 16. Frontier of Science. 17. Appendices ...
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science
astronomy
physics
space
universe
reference
theory
learning
education
evolution
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Astronomy For Kids - KidsAstronomy.com
KidsAstronomy.com is a powerful astronomy websited designed to introduce children to the facinating ... KidsAstronomy.com, part of the KidsKnowIt Network, is the ...
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astronomy
science
space
kids
education
solar_system
planets
solarsystem
games
interactive
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Stellarium
Stellarium is planetarium software that shows exactly what you see when you look up at the stars. It's easy to use, and free.
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astronomy
software
science
opensource
space
planetarium
freeware
free
windows
stars
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Solar System Exploration: Home Page
The Solar System Exploration Home Page is part of NASA's Office of Space Science and describes NASA's program to explore the solar system.
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space
science
astronomy
nasa
planets
solarsystem
education
reference
solar
system
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AAVSO: American Association of Variable Star Observers
No information avaiable
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astronomy
science
space
variables
stars
research
reference
education
physics
astro
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Home | Galaxy Zoo
Galaxy Zoo is an online, large-scale astronomical survey that asks volunteers to help classify galaxies.
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astronomy
science
space
research
galaxy
community
classification
collaboration
web2.0
web
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Earth and Moon Viewer
Allows you to customize a wide variety of parameters.
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astronomy
space
science
earth
maps
satellite
moon
reference
images
tools
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