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.

Scientists have unearthed in Arizona fossils from an assemblage of animals, including North America's oldest-known flying ...

Ben Kligman, a Peter Buck Postdoctoral Fellow and paleontologist at the Smithsonian’s National Museum of Natural History, ...

Researchers were able to date the fossil of the flying reptile, a close cousin of dinosaurs, back to more than 209 million ...

A single deposit has produced a wealth of fossils revealing the late Triassic ecosystem, where giant amphibians cohabited ...

Found deep in the backcountry of the Petrified Forest National Park and uncovered by a volunteer in Washington, the specimen helps fill gaps in the fossil record.

The team named the new pterosaur species Eotephradactylus mcintireae. The generic name means ‘ash-winged dawn goddess’ and references the site’s volcanic ash and the animals’ position near the base of ...

Paleontologists have uncovered in Arizona a Triassic treasure trove of fossils dating back 209 million years ago.

The fossilized remains of the "seagull-sized" pterosaur were discovered in Petrified Forest National Park, Arizona. The post ...