SCIENTIFIC AMERICAN Really big asteroid strikes may cause melting and deep deformations that eventually lead to volcanic eruptions. Listen to the podcast at Scientific American’s 60-Second Science.
Rare cataclysms are hard to study and plan for, but they may be too dangerous to ignore. Read the full story in Science magazine and listen to my interview on the Science podcast.
Lavas that originate deep in the mantle offer insight into the early days of planet Earth. Listen to the full podcast at Science.
Geologists have long attributed the disappearance of the dinosaurs to a catastrophic asteroid impact. But some scientists wonder if other factors–like massive volcanic eruptions in present-day India–didn’t have a hand in it too. That idea is bolstered by new research that finds a spike in mercury around the time of the extinction. Learn more in … More Did volcanoes do in the dinos?
Long before Arizona’s Meteor Crater got its name, scientists puzzled over its origin. Grove Gilbert, a well-respected figure at the US Geological Survey, thought a steam explosion had hollowed out the vast bowl of desert, while a scientific outsider named Daniel Barringer insisted that an impact had blasted it out. It took more than half … More The long, bitter debate over Meteor Crater
What do the United States Geological Survey, the Moon, and the recent Siberian meteor have in common? A new Visionlearning blogpost on mapping the moon explains!