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Exploration has created and defined our modern world. Humanity's primal curiosity has sparked new inventions and revealed the mysteries of the universe.
From a simple act of trade to today's global economy, the meaning of money and what we value changes as civilization evolves.
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- Premiered: September 28, 2004
- Rating: TV-PG
- Premise: Four-hour `Nova' miniseries exploring the `cosmic quest' for the origins of Earth and life on it. Host Neil deGrasse Tyson, an astrophysicist, is the director of New York City's Hayden Planetarium. (more)