For the first time ever, physicists have mapped the path that particles are most likely to take when moving from one quantum state to another. In physics, a concept called the "path of least action" ...

This week, the federal Department of Homeland Security is testing just how many subway riders would be at risk in a nightmare scenario: terrorists releasing a deadly biological agent in the subways.

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...