• May 18, 2016  

    Wednesday marks the 36th anniversary of the deadliest volcanic event in U.S. history: the eruption of Mount St. Helens, which killed every living thing in a 230 mile radius. But the slopes around the volcano are now beginning to repopulate with plant and animal life, giving biologists a unique opportunity to watch an ecosystem develop in real time. Science correspondent Miles O’Brien reports.
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  • July 7, 2015  

    Hundreds of miles off the coast of Oregon and Washington, there’s an undersea volcano known as Axial Seamount. Two months ago when it began spewing lava, it wasn’t a secret to a group of scientists engaged in a groundbreaking research project. Hari Sreenivasan reports on their Cabled Observatory — a network of sensors, moorings and cameras that offers views of a little-known world. Continue reading

  • May 17, 2015   BY  

    On the morning of May 18, 1980, a 5.1 magnitude earthquake shook the ground beneath Mount St. Helens and awakened the volcano located 96 miles south of Seattle, Washington, that had been dormant for more than 140 years. Continue reading

  • October 30, 2014  

    There are two natural fiery wonders currently lighting up the earth and the heavens. The lava flowing from the volcano on Mount Kilauea in Hawaii is moving slowly, but there’s no way to stop it. Meanwhile, there’s a sunspot the size of Jupiter which could potentially cause havoc with the high-frequency communications. Science correspondent Miles O’Brien joins Hari Sreenivasan for more. Continue reading

  • March 3, 2011   BY  

    Known for it’s scenic beauty but plagued by poverty, violence and malnutrition, Guatemala has the second largest indigenous population in the Western Hemisphere. Continue reading

  • November 30, 2010    

    It’s time for our weekly Just Ask feature, where the experts tackle your questions on science and technology. John Eichelberger, a volcano expert with the U.S. Geological Survey, answers the question, “Why Does the Earth Have Volcanoes, and What Makes … Continue reading