Startup develops app to detect irregular heartbeats that can cause strokes.

New chip would thwart the counterfeiting that plagues the market for wired device chargers.

Mayor Martin Walsh announces a competition aimed at improving Boston driving with an app developed by an MIT spinout.

Mobile-phone data helps researchers study an urban problem in greater detail.

Big-data analysis could give city planners timelier, more accurate alternatives to commuter surveys.

New lithium metal batteries could make smartphones, drones, and electric cars last twice as long.

Team’s smartphone-connected device can detect lung cancer early from a single breath.

New app from MIT researchers gathers rider feedback to improve Boston bus service.

Project to provide children with tablets loaded with literacy apps reports encouraging results in Africa, U.S.

Depth sensor built from off-the-shelf parts filters out ambient infrared light.