Add Yahoo as a preferred source to see more of our stories on Google. Finding black streaks or splotches in the sand while walking along a Michigan beach may have you wondering if you've stumbled ...

Investigators have used magnetoencephalography -- a technology that measures brain activity by detecting the weak magnetic fields produced by the brain's normal electrical currents -- to measure ...

Finding black streaks or splotches in the sand while walking along a Michigan beach may have you wondering if you've stumbled across some sort of pollution, but it's actually a completely natural ...