The world, in perspective.

Scientists are calling for a major rethink of how we manage high blood pressure, suggesting that eating more potassium could be just as important as cutting back on salt. A new report finds that combining increased potassium intake with reduced sodium consumption may offer greater benefits for blood pressure control than sodium reduction alone.

Mathematicians have uncovered what they argue is a fundamental flaw in the standard model of the universe, potentially challenging the need for dark energy. Their calculations suggest that the mathematical framework used to describe cosmic expansion is inherently unstable and that the universe could accelerate naturally under Einstein's original theory of gr

<p>Knots show how to generate infinitely many formulas of a kind developed by the visionary genius</p>