• 7:27pm Feb 07, 2013
    World News World News National Science

    Blocking Iran With A Global Game Of Nuclear 'Keep Away'

    Obtaining the materials to make weapons-grade uranium or separated plutonium is harder than making a nuclear weapon, experts say. That's why the U.S. is engaged in a global effort to try to keep the specialized products out of hands it deems dangerous, like Iran.
  • A worker makes a cut in the side of a sandstone block at the Cleveland Quarries facility in Vermilion, Ohio, earlier this month. The legal limit on the amount of silica that workers can inhale was set decades ago.
    Ty Wright / Bloomberg via Getty Images
    3:07pm Feb 07, 2013
    National National Science Health & Safety

    Silica Rule Changes Delayed While Workers Face Health Risks

    Regulations to restrict the amount of silica dust that workers can inhale were set decades ago, and workplace safety experts say that limit needs to be cut in half. A proposal for new rules was sent to the White House Office of Management and Budget for a 90-day review, but almost two years later, it's still under review.
  • Trash, much of it believed to be debris from the 2011 Japanese tsunami, litters the beach on Montague Island, Alaska, on Jan. 26.
    Annie Feidt for NPR
    10:51am Feb 06, 2013
    World News World News National Science Environment

    Tsunami Debris On Alaska's Shores Like 'Standing In Landfill'

    Wreckage believed to be from the 2011 Japanese tsunami is washing up thousands of miles away in Alaska. The debris isn't just unsightly — it poses environmental worries for the landscape and animals. One conservationist says the problem may be worse than the Exxon Valdez oil spill.
  • Health researchers say the proportion of people in their late 40s to 60s with diabetes, hypertension or obesity has increased over the past two decades.
    10:40am Feb 06, 2013
    National National Science Health & Safety

    Aging Poorly: Another Act Of Baby Boomer Rebellion

    Many of them have cut out smoking, and rates of heart attack and emphysema have declined. But baby boomers are burdened with diabetes, hypertension and many other chronic conditions. Researchers say too little exercise and a rise in obesity threaten baby boomers' golden years.
  • 2:29pm Feb 04, 2013
    Science Science

    Scientists Discover Dung Beetles Use The Milky Way For GPS

    A team of scientists has discovered that dung beetles climb on dung balls and dance around in circles before taking off. This dance is not one of joy, however — the insects are checking out the sky to get their bearings. Melissa Block and Audie Cornish have more.
  • The reactor room at Babcock & Wilcox's prototype reactor outside Lynchburg, Va. The reactor vessel is behind the orange curtain.
    Ben Bradford / WFAE
    12:15pm Feb 04, 2013
    National National Science

    Are Mini-Reactors The Future Of Nuclear Power?

    The prefabricated nuclear reactors, which would be small enough to build in a factory and ship on trucks, would generate about one-tenth the power of a typical nuclear power plant. It's potentially a growth opportunity for American industry, but critics say the reactors carry a host of safety, security, environmental and economic concerns.
  • 1:49pm Feb 01, 2013
    Science Science

    Preserving Science News In An Online World

    How can journalists and bloggers avoid some of the pitfalls of communicating science in an online world? Should a website's comments section be moderated, or removed altogether? How has social media changed the blogosphere? A panel of experts joins Ira Flatow to discuss.