With an estimated 5,500 species in the Yasuni National Park, Ecuador has some of the largest biodiversity in the world. But Yasuni is also home to nearly 850 million barrels of crude oil, which Ecuador may choose to leave untapped…

By Ellen Rolfes

Hundreds of cities on the U.S. West Coast took part in the 2011 Great California ShakeOut earthquake drill on Thursday, just hours before a small tremor hit the San Francisco Bay Area. Science correspondent Miles O'Brien reports from Japan on…

Three separate drilling plans were created to save the 33 Chilean miners trapped in the San Jose mine. Margaret Warner talks to one Americans who helped orchestrate the rescue.

Crews continued to drill holes to vent explosive gasses out of a mine in West Virginia where four miners are still missing. Jim Lehrer gets an update from NPR reporter Frank Langfitt on the scene about the search efforts and…