A dramatic blast of cold air may be coming for the United States in late January, courtesy of the polar vortex. Here's what ...

The Grand Canyon in northern Arizona is listed as one of the seven natural wonders of the world. The Colorado River, running through it for approximately six million years, has established ...

On a hot sunny day, you may spot vortexes of blowing dust spiraling upward and throwing debris everywhere. But as any Grand Canyon State native knows, these aren't mini tornadoes. They're dust devils, ...