As part of its Vision Zero initiative, Boston is implementing a number of roadway changes in four targeted areas aimed at lowering vehicle speeds and creating safer environments for pedestrians and cyclists.
A U.S.-led team says it has seen gravitational waves from two black holes merging together. It's the first time we have directly detected such waves.
The governor, who has reached similar agreements with the state's medical schools, continues to take steps on his own to chip away at the opioid problem.
Johnson has devoted her career in medicine to furthering research that explores how women respond differently to diseases and treatments than men do.