We are watching two areas for potential tropical activity, one of which could develop in the Caribbean next week. There is still a lot of uncertainty, but here’s what we know now.

We haven't had many severe thunderstorms in the U.S. this month. But that may change this weekend. Here's our latest forecast regarding a threat for damaging winds, hail and even a few tornadoes.

A sudden intense hailstorm stunned the Bolivian city of Tarija, covering streets with in ice and burying cars under mounds of hail. The storm damaged homes and sent hundreds of workers scrambling to repair infrastructure and clear the frozen mess left behind.

This plastic-eating, self-powered robotic fish could mark the beginning of a new era in environmental cleanup, in which technology doesn’t just consume energy but gives some back to the planet.

Rain and storms will shift into the Northeast Sunday before another round of rain could hit parts of the region early next week. Cities like Washington D.C., Pittsburgh, Cleveland and Detroit could all see rainfall this weekend. Watch this video for the latest.