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9 Cold Cases That Have Totally Baffled Investigators

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Despite how hard investigators work, some crimes just baffle even the most gifted detectives. They go cold. That's where these nine cases stand. Will they ever be solved?

Rahab: The Biblical Prostitute in the 'Faith Hall of Fame'

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She's the hero of one of the best-known Bible stories and also described as one of Jesus' ancestors, even though she was a Canaanite prostitute. Who was Rahab, really?

How the James Webb Space Telescope Works

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NASA's James Webb Space Telescope will look back in time to see the earliest stars in creation, and serve as the premier deep space observatory for the next decade. Ready to meet the mighty Webb?

What if a black hole formed near our solar system?

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Black holes have serious pull, and they're not afraid to use it. Could one of these skulking bad boys ever arise in our home, sweet (solar system) home?

How the Word 'Hack' Became So Hacked

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The word "hack" has evolved so much over time that, instead of suggesting a shadowy criminal act, it means you've found the best way to do something.

The Glass Armonica: A Harmonious Invention by Benjamin Franklin

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Learn about the Glass Armonica, a unique musical instrument invented by Benjamin Franklin. The glass armonica produces beautiful, haunting sounds by rubbing wet fingers on tuned glass bowls.

Understanding Panic Attacks

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A panic attack can strike from out of nowhere and be terrifying to the person who experiences the panic attack. What causes a panic attack?

How Color Blindness Works

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Color blindness is a condition that affects the way in which people see certain colors. Learn about color blindness and causes of color blindness.

How Long Does It Take to Form a Habit? The 'Three-Week' Rule

science.howstuffworks.com/life/inside-the-mind/human-brain/form-a-habit.htm

Three weeks of hard work. Is that all it takes to kick your smoking habit, taste for junk food or serial inability to stop hitting the snooze button? Sounds almost too good to be true, doesn't it?

How 'The Da Vinci Code' Doesn't Work

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Learn what happened when we took a close, hard look at 'The Da Vinci Code' and how it uses science, technology, art and history.

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