Science is designed to explain the world around us. And sometimes things get so weird they defy explanation! We have the ...

From glowing red rocks to epic canyons, explore stunning Arizona desert landscapes that deliver unforgettable views and ...

California is a great place for spelunking -- aka exploring caves. While you might think one cave is like another, each one ...

Centuries before cellphone photos and social media sites, residents of what is now Tucson had their own way of posting scenes from daily life: They pecked petroglyphs into rocks. These petroglyphs, ...

Title page reads: Transcripts of Petroglyphs found in Queens County, Nova Scotia, collected during June and July, 1888 by and under the direction of George Creed, South Rawdon, N.S. Note: Those copies ...