The next video conference is scheduled for Wednesday October 08, 2008 at 11:00am ET.

The next video conference is scheduled for Wednesday November 05, 2008 at 11:00am ET.

The EPA also issued a new statement on the presence of radiation in granite, which said: "Construction materials such as concrete, cinder blocks, bricks, and granite contain small amounts of radioactive materials that are found naturally in the materials used to make them."
+ EPA FAQ:

Exercise may reverse some damage that radiation does to the brain, Swedish researchers reported in a study that offers a way to help childhood cancer survivors.
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The Large Hadron Collider (LHC), the most powerful particle accelerator ever built became operational at 9:30 am local time, 300 feet below the borders of France and Switzerland near Geneva. When the £5 billion particle accelerator is up to full power, trillions of protons will race around the LHC accelerator ring 11,245 times a second in opposite directions before smashing into each other. It is capable of achieving 600 million collisions every second. The products of those collisions may help scientists reproduce the conditions that existed during the first moments after the Big Bang at the birth of the universe. Physicists hope to learn more about the origins of mass, gravity and mysterious dark matter - the "glue" thought to hold the universe together.
+ Science Article: