Mysterious driftwood high in Grand Canyon caves hints at the legacy of Arizona’s huge impact crater.

Early in the morning of October 6, 2008, astronomers at the University of Arizona detected an asteroid on a collision course with Earth. When other sightings cropped up across the world, the ...

A meteorite impact thousands of years ago may have triggered a landslide in the Grand Canyon and reshaped the Colorado River that runs through the national park. Geologists studying driftwood and lake ...

They're stronger and more impactful than we ever knew.

Scientists have discovered a massive asteroid impact crater in China. The bowl-shaped depression is some 900 meters wide—more than eight times the length of a football field. In a paper published last ...

In a small northwest Iowa town built atop a 74-million-year-old meteorite crater, even the drinking water carries remnants of ...

WINSLOW, AZ (AZFamily) — An asteroid hit the Earth in what is now known as northern Arizona about 50,000 years ago. It left a giant crater that draws people from all over the world. Nestled between ...

Learn about 2024 YR4, the asteroid with a 4 percent chance of hitting the Moon in 2032, and the possible timeline of effects ...

An asteroid which risks colliding with the moon in just years could produce "the most energetic lunar impact event ever recorded in human history", scientists say. Asteroid 2024 YR4, which at one ...

Geology is full of detective stories about the Earth's history, and a new paper in Geology by University of New Mexico Distinguished Professors Emeritus Karl Karlstrom and Laurie Crossey, along with ...

Russell has a PhD in the history of medicine, violence, and colonialism. His research has explored topics including ethics, science governance, and medical involvement in violent contexts. Russell has ...