Curious physics results could shed light on dark matter

Even experiments that aren't looking for dark matter directly could give us hints about the mysterious substance that permeates our universe. Scientists love a mystery. It's satisfying when a prediction is shown to be correct, but it's intriguing when an experiment turns up a result that deviates from expectations. Several such anomalies have shown up in recent years in particle physics and astrophysics. Sometimes results like these can be explained by faulty equipment. Sometimes they disappear ...