1. The Fastest

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. 15 February 2009. 60 min

In the vast expanse of space, nothing matters more than speed. Whether we’re venturing out to the farthest reaches of our solar system or exploring the mysteries of time travel and wormholes, speed is the key.

2. The Biggest and Smallest

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. 15 February 2009. 60 min

From the enormous universe in which we exist to tiny atoms that make up the building blocks of everything around us, size matters when it comes to understanding the cosmos.

3. The Most Explosive

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. 15 February 2009. 60 min

Scientists believe that our universe started with a colossal explosion called the Big Bang. That powerful blast created all the matter and energy in the universe and laid the groundwork for every explosion since.