About midmorning on Sunday, as the temperature crept above freezing, the ice sheet on Boysen Reservoir started making sounds ...

Erin Pettit and researchers at Oregon State University were set to find out. They’ve been studying melting glaciers by dropping hydrophones — specialized underwater microphones — into the water near ...

At the edge of Antarctica, one of the planet’s most fragile ice giants is splintering so violently that it is sending out its own earthquakes. The so‑called Doomsday Glacier is not only cracking apart ...