Is there a time of day or night at which nature's heaviest elementary particle stops obeying Einstein's rules? The answer to that question, as bizarre as it seems, could tell scientists something ...

As opposed to a constant flow from sources above and below ground, periods of heavy rain and runoff deliver the greatest amounts of fertilizer-derived nitrogen through creeks, rivers, and storm drains ...

There, 2.2 miles (3.5 km) beneath the waves, a single subatomic particle called a muon flashed through the detector, lighting up more than a third of its sensors. By tracing the angle of this muon ...