arizona

Time-traveling through 1.7 billion years of geology at the Grand Canyon

by

We visited the Grand Canyon in Arizona this spring and hiked all the way to the bottom! Starting with the Kaibab Formation at the top, which formed around 270 million years ago during the Permian period, and moving down to the Vishnu Schist at the canyon floor, which formed 1.7 billion years ago during the … Read more

Barringer Crater and Canyon Diablo Meteorite

by
Barringer Meteor Crater

When we were going back to Phoenix from the Grand Canyon, we turned east in Flagstaff and took a 45 minutes detour to visit the Barringer Meteor Crater (a.k.a. Meteor Crater Natural Landmark). This is the most well-preserved meteor crater in the world and the first confirmed impact crater on Earth caused by an extraterrestrial collision. The meteorite … Read more