Stirring ingredients into your vocabulary does not have to be an ordeal. Just follow this route to our glossary. We add new words for each issue.
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Space Junk: Chris Butler/
Photo Researchers, Inc.
Lemur: Mark Thiessen
Cave: © Urosr/Shutterstock
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Space Junk
Space around Earth is becoming a garbage dump. Will a lost tool or smashed satellite crash into the next space mission?
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What's New?
Travel the planet with scientists as they journey through dark jungles and over tall mountains searching for animals unknown to science. The adventure begins on page 2 of our May 2010 issue.
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Caves
Head deep into the darkness below Earth's surface to a world of shadows, twisting tunnels, and raging rivers. Explore Earth's depths on page 16 of our May 2010 issue.
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