Add Yahoo as a preferred source to see more of our stories on Google. An “omega block” weather pattern is forecast to set up across the country this weekend, possibly bringing some May snow. Here's ...

This pattern disrupts typical west-to-east jet stream flow, causing stagnant weather conditions, including cool, showery weather in the East and West, and mild, clear conditions in the north-central U ...

What do babies, birders and a set of fictional folks faced with a do-or-die puzzle have in common? Once again, we tease out an imaginative thinking tool fundamental to human cognition and creativity.