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Space

How did the universe begin? How will it end?

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Technology

What is 3D printing?

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Cyber

How secure is data stored in the cloud?

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Criminal justice

Can forensic scientists match—with certainty—a bullet, fingerprint, or strand of hair to a crime suspect?

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Immigration

How does immigration affect the U.S. economy?

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Health

Why do drugs cost so much?

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Health

What are the biggest problems facing veterans returning home from conflict?

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Climate change

How is Earth’s climate changing?

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Climate change

How is climate change affecting heat waves, floods, hurricanes, and other extreme weather?

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