An unusual concentration of impact craters suggests that they may have been caused by the breakup of an asteroid that created a temporary debris ring around Earth.
Earth science
Posted inNews
Many of the World’s Cities Have Gotten Wetter
Dense populations, aerosols, and cities’ tendency to raise temperatures contribute to higher levels of precipitation in urban areas than surrounding rural areas.
Posted inENGAGE, News
Here’s Why Resolution Copper Wants to Mine Oak Flat
Southeastern Arizona’s “Copper Triangle” is a hot spot for high-grade deposits, thanks to ancient magmatic activity.
Posted inResearch Spotlights
Each Glacier Has a Unique Organic Matter Composition
Like snowflakes, no two glaciers are alike: Carbon-containing compounds released from glaciers vary from place to place, meaning climate and ecosystem effects of melting could vary as well.
Posted inEditors' Vox
Toward a More Sustainable Future for the Rare Earths Industry
A new book explores how more sustainable methods are being applied to the recovery, processing, and purification of rare earths used in everyday technologies.
Posted inNews
Mega El Niño May Have Led to Major Mass Extinction 252 Million Years Ago
The extreme climate conditions wrought by a decades-long ENSO pattern could be the culprit in the Great Dying, which wiped out nearly 90% of life on Earth.
Posted inResearch Spotlights
How Did Magma Oceans Evolve on Early Earth and Mars?
New insights into the early timelines of rocky planets are emerging, thanks to clues from iron chemistry and primordial atmospheres.
Posted inResearch Spotlights
New Details About a Very Old Eruption and Flood
One of the most dramatic volcanic eruptions in history occurred more than 1,000 years ago. Scientists are still piecing together the aftermath.
Posted inNews
Finding the Frequency of a Fjord
A massive tsunami churned up a mysterious 9-day noise in East Greenland. As the climate warms, more fjords may start singing.
Posted inNews
Earthquakes May Lace Quartz Veins with Gold
Seismic activity may kick off chemical reactions that seed nuggets of gold.