February 3, 2009—Volcanic smoke and gas from two new holes eat through snow and ice high on Alaska's Redoubt Volcano on Saturday—one of them (left) about the size of a football field. "Things are shifting" on, and in, the 10,197-foot (3,108-meter) volcano—considered the ninth most dangerous in the U.S.—said geologist Kristi Wallace of the Alaska Volcano Observatory, who was on a survey flight over the two big fumaroles yesterday (Redoubt Volcano satellite map). Surrounding ice is melting rapidly, and the gases have now been confirmed to include carbon dioxide, hydrogen sulfide, and sulfur dioxide—adding to evidence that a magma chamber...