Solving a lunar mystery? Scientist at the University of Arizona is the lead author on research proposing a new theory for the ...

Karl Karlstrom, a geologist recently retired from the University of New Mexico, grew up in Flagstaff, Arizona. Grand Canyon ...

As astronauts prepare for south-polar landings, a new look at the Moon’s biggest crater points to a pivotal moment in lunar ...

A new study reveals that the largest lunar crater, South Pole-Aitken basin, was formed by an oblique impact that shaped the ...

New research reveals the Moon's colossal South Pole-Aitken basin was formed by an asteroid striking from the north, not the ...

A crater on Mars has a bright patch of ice. It's the second time in over a decade that the crater and ice has been observed ...

Could Artemis III astronauts collect some lunar samples that shed light on the moon's mysterious past? That's what a team of ...

Stick around after sunset ends because the transition period offers unique opportunities. Silhouetted cacti against deepening ...

This desert town in Central Arizona is not only gorgeous, it's also a doorway into the area's ancient past, with amazing ...

Standing at the edge of Meteor Crater near Winslow, Arizona feels like peering into another world—a massive bowl carved into the Earth by a visitor from space that arrived with the subtlety of a ...

The Moon’s largest and oldest known crater, the South Pole–Aitken (SPA) basin, is revealing secrets that could transform our ...

There’s a moment when you first glimpse Meteor Crater near Winslow, Arizona, that your brain simply refuses to process what your eyes are seeing. It’s like someone took a giant ice cream scoop to the ...