
Philippe Cousteau Jr. is no stranger to exploration. The grandson of legendary underwater explorer Jacques Cousteau, Philippe hosts and serves as executive producer of this half-hour earth science series that examines the planet. He visits diamond and gold mines to see how gems and metals are formed, travels to active volcanoes to observe what happens inside the Earth's burning core, and checks out weather stations in mountainous areas to get an idea of how weather phenomena form in the atmosphere.

Orcas in British Columbia; great white sharks in Cape Cod Mass.

Researchers study category five hurricanes; tornado trackers hunt for a twister; how wind causes lightning to form; a mountain where the fastest winds in the Northern Hemisphere have been recorded.

Woods Hole Oceanographic Institute makes discoveries under the deep sea; coral reefs off the Florida coast; the power of Maui's massive waves.

Iceland: waterfalls and geysers, a volcanic mountain that may erupt at any time, producing electricity with geothermal and hydropower, a large glacier.