How massive lava fields formed in the Pacific Northwest

Volcanic eruptions are significant geologic hazards. Underwater volcanoes are challenging to study, yet they play an integral ...

Impact-formed glass provides evidence of cosmic collision in Brazil about 6 million years ago

For the first time in Brazil, researchers have identified a field of tektites. These are natural glasses formed by the high-energy impact of extraterrestrial bodies against Earth's surface. These ...