181 Things To Do On The Moon
If you woke up tomorrow morning and found yourself on the moon, what would you do? NASA has just released a list of 181 good ideas.
http://science.nasa.gov/headlines/y2007/02feb_181.htm

Composition of the Earth's Atmosphere
Nitrogen
Oxygen
Argon
Carbon Dioxide
Neon
Helium
Methane
Krypton
Hydrogen
Xenon
http://education.jlab.org/glossary/abund_atmos.html

Earth
Earth, our home planet, is the only planet in our solar system known to harbor life - life that is incredibly diverse.
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Earth

Earth
Earth Fact Sheet
http://nssdc.gsfc.nasa.gov/planetary/factsheet/earthfact....

Earth and Moon Viewer
You can view either a map of the Earth showing the day and night regions at this moment, or view the Earth from the Sun, the Moon, the night side of the Earth, above any location on the planet specified by latitude, longitude and altitude, from a satellit
http://www.fourmilab.ch/earthview/vplanet.html

Earth never sleeps
American Museum of Natural History, New York:The land, seas, and air are in constant motion. Science Bulletins keeps you up to date
http://sciencebulletins.amnh.org/earth/

Earth Observatory
NASA Visible Earth: a Collection of Earth's Images
http://earthobservatory.nasa.gov/

Earth Observing System NOAA
Imagine a world in which we can forecast winter weather months in advance; predict where the next outbreak of malaria, SARS or West Nile virus is likely to hit; and, in the U.S. alone, reduce energy costs by about $1 billion annually.
http://www.noaa.gov/eos.html

Earth's Moon
Earth's Moon Fact Sheet
http://nssdc.gsfc.nasa.gov/planetary/factsheet/moonfact.html

Earth's Water
How much water is there; where is this water; how does it move around?
http://ga.water.usgs.gov/edu/mearth.html