Active volcanic craters are something that people generally don't want to get very close to – even if they're dedicated volcanologists. With that in mind, German scientists recently had success using ...

View of the valley from one of Santiaguito's plateaus. MUST CREDIT: Photo by Kayleigh Kulp for The Washington Post. Santiaguito roared throughout the night – a thunderous pop and a rumble followed by ...

Due to high risk for researchers, the imaging of active volcanoes has so far been a great challenge in volcanology. Scientists used a drone for a series of repeated survey flights with optical and ...

Special to The New York Times. TimesMachine is an exclusive benefit for home delivery and digital subscribers. About the Archive This is a digitized version of an article from The Times’s print ...