For millions of people, the images seemed to herald the arrival of a new age. To understand why those images mattered, it is necessary to remember how threatening Iraq seemed before the war began.

Quirky backyard sprinklers helped scientists solve a decades-old mystery about how flowing water makes objects spin.

Scientists have pinned down why a sprinkler spins when it sucks in water instead of spraying it out — a problem that stumped ...

The United States lacks a rigorous, routinized approach to managing foreign policy crises. The Wachenheim Center for Peace and Security has developed a set of Crisis Response Playbooks to serve as ...

Every council member OK'd a budget that closed 13 bathrooms in Mission Bay Park. Now one has an idea to fund them — but the mayor says it's a non-starter.

A wearable fingertip sensor continuously measures levodopa levels in sweat, which could enable personalized dosing for patients with Parkinson’s disease.

To participate, submit your response here by July 31 at 9 a.m. Eastern. This week’s winners will be announced by Aug. 12. By The Learning Network A new collection of some of our favorite “What’s Going ...