Happily, hair dye and cell phone radiation are not likely connected to breast cancer, the IOM team repots.

FORBES: Environmental Risks For Breast Cancer: What You Need To Know

Prosecutors showed surveillance camera video taken inside the theater complex that they said shows Holmes -- dressed in dark trousers, a light-colored shirt with a T-shirt underneath and a ski cap covering his hair -- using a cell phone at a ticket kiosk.

CNN: STORY HIGHLIGHTS

Lastly, the week saw the unveiling of the world's first fiber-optic solar cell, which is thinner than the width of a human hair and could pave the way to creating energy-producing clothes.

ENGADGET: Inhabitat's Week in Green: madder root batteries, sun-powered plane and the world's first fiber-optic solar cell

"To some people, driving is the distraction: They want to comb their hair, they want to drink their coffee, they want to talk on their cell phones, " says GM's Burns.

FORBES: Car Talk

The total thickness of a completely plastic solar cell is in the range of one micrometer, which is 100 times thinner than a human hair.

FORBES: New Technique Creates First Plastic Solar Cell