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 ...

DURHAM, N.C. -- One of the tiniest building blocks of the universe has a weigh-in problem, and Ashutosh Kotwal is determined to get to the bottom of it. For nearly 30 years, the Duke physicist has led ...

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 ...

Get Instant Summarized Text (Gist) The first dark matter search using the WINERED spectrograph on a large telescope in Chile has set new constraints on the lifetime of dark matter particles with ...