In Arizona, nature is diverse and dramatic. The state's Tonto Natural Bridge State Park is home to the world's largest natural travertine bridge, where visitors can hike and explore its unparalleled ...

GREENVILLE, N.C. (WITN) - As kids get ready for winter break, there are many ways to keep them learning at home. One option: science experiments! Covey Denton has some ideas to bring the science lab ...

A giant impact on the early Earth could have brought the building blocks of RNA to our planet, which new research suggests ...