Devin Powell

All Stories by Devin Powell

  1. Earth

    Natural gas wells leakier than believed

    Measurements at Colorado site show methane releases are twice as high as previously estimated.

  2. Life

    Ocean noise is a whale of a stressor

    The post-9/11 quiet in Atlantic shipping lanes calmed the biggest marine mammals, hormone measurements suggest.

  3. Earth

    Little Ice Age began with a bang

    Frozen moss suggests climate cooling kicked off fast, possibly with help from volcanic eruptions.

  4. Earth

    Some corals like it hot

    Western Australian reefs are faring better than their eastern counterparts, at least for now.

  5. Humans

    Intel Science Talent Search names top 40 finalists

    More than 1,800 high school students entered the 2012 competition.

  6. Health & Medicine

    Turn off, tune in, drop out

    Magic mushrooms reduce blood flow to parts of the brain responsible for sense of self.

  7. Climate

    Amazon may become greenhouse gas emitter

    South America’s massive rain forest may soon release more carbon into the atmosphere than it absorbs.

  8. Life

    Boas take pulse as they snuff it out

    Snakes use the waning throb in their prey as a signal to stop squeezing.

  9. Physics

    String theorists squeeze nine dimensions into three

    A supercomputer simulation of the Big Bang’s immediate aftermath may explain why space has three directions.

  10. Earth

    Small efforts to reduce methane, soot could have big effect

    Simple measures could slow global warming and reduce premature deaths.

  11. Physics

    Neutrino parents call into question faster-than-light results

    The particles’ precursor doesn’t have enough energy to produce the speeds reported.

  12. Ecosystems

    Groundwater dropping globally

    Nine-year record collected from orbit finds supply dropping mostly due to agriculture.