Season 6

1. Incinerator Earth

October 22, 2009

2. Super Diamonds

February 26, 2009

The hardest known substance on Earth is known for its value and beauty. Scientists believe diamonds could also hold incredible possibilities for the future. Their incredible durability and their unique properties could revolutionize everything from computer chips to space explorations. All diamonds, however, contain minor flaws. What science must do is create a perfect "super diamond".

3. Monster Black Holes

March 26, 2009 · 1h

Astronomers continue to study black holes to understand what role they play in the universe. Scientists understand that their incredible pull can swallow nearby stars and entire galaxies and that they warp time and space. Investigators use the equations of Einstein and theories of Hawking to figure out what the inside of a black hole looks like and what time, place, or dimension lies on the other side. AKA Monster of the Milky Way AKA Cosmic Monsters

5. Countdown To Impact

December 3, 2009

6. Vesuvius Time Bomb

December 10, 2009

22. Dirty Bombs

November 12, 2009 · 45m

This episode examines the effects of a hypothetical radiological attack from a car bomb on a major U.S. city. The purpose is to give useful information in the event that such an event should occur. The stories of several characters are told to dramatize the effects on various types of people: those responding in the "hot zone", a person near to the blast whose symptoms develop over time, a pregnant woman who must evacuate, and investigators who comb through debris to determine who set the blast.