Forecasters at NOAA's Climate Prediction Center say La Niña could form in the coming weeks. La Niña is expected to emerge this fall and last through the winter months.

The National Hurricane Center continues to monitor an area off the Southeast coast for tropical development. Regardless of development, the system will bring heavy rain to the Carolinas.

After a massive glacier collapse in Greenland triggered a mega-tsunami, the entire planet recorded vibrations for nine straight days - much longer than any earthquake. So what actually happened? Scientists think they finally have their answer.

One passenger described it as a “Titanic moment” when a Carnival Cruise ship struck a piece of floating ice in Alaska’s Tracy Arm Fjord. Watch this video for the full story.

Fogbows form slightly different than rainbows. Here is how they form.