It felt like paddling through soggy cereal. My wife and I were deep within Everglades National Park, struggling to kayak past dense mats of periphyton, a mass of algae, fungi and other organisms.

Firefall’s rock and roll is synonymous with Boulder, Colorado, but founding member Jock Bartley recalls other favorite travel ...

Mars, often imagined as a lifeless desert battered by radiation and cold, holds within its crust the haunting memory of a ...

Meteor showers in July 2025 include the Perseids, Alpha Capricornids and Delta Aquariids. Here's when each shower peaks and how to see it in Arizona.

NASA astronaut Don Pettit has just shared a beautiful shot of the Grand Canyon captured from the space station during his recent stay there.

The Old Caves Crater Trail is one of the best hikes in Arizona for exploring caves built by the region's earliest inhabitants ...

The National Park System, NPS, is the keeper of our national treasures. It includes 433 national parks, with n63 historic ...