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The Planet Earth Today

Earth photographed by American astronauts aboard the Apollo 17 moonflight capsule
Earth from Apollo 17
  Conditions on Earth

Future Heat Waves on Earth

Global Warming

Ozone Hole Larger Than Ever

Wobbly Orbit Extinctions
  The Sun-Earth Relationship

Sunspots and Other Solar Mysteries

Protecting Earth from the Sun

Current Solar Activity

Earth at Aphelion
 
  Observing Earth from Space

Terra, Aqua, Aura
    Environmental Satellites

Whole Earth Satellite Map
  Earth and Space

Stories of Meteors and Meteorites

Testing Einstein's Theory

Alaska Volcano Cam

What Is Time?



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