Geophysical Sciences

black and white image, close-up of crystalline dust fragment

UChicago, Field Museum scientists discover oldest material on Earth: 7-billion-year-old stardust

Seal traverses sheet of Antarctic sea ice

Antarctic sea ice is key to triggering ice ages, study finds

Object hitting Earth illustration

NASA moon rocks help form new picture of early moon and Earth

Data points

How AI could change science

Asteroid crash

Dust from a giant asteroid crash caused an ancient ice age

Promontory Point

One scientist’s quest to map the trillions of microbes in the Great Lakes

Salt mountain

Salt deposits on Mars hold clues to sources of ancient water

Water pumped into basin

Krypton reveals ancient water beneath the Israeli desert

Astronaut Harrison Schmitt

50 years later, UChicago scientists continue to decode moon’s mysteries

Clara Blättler

Scientists discover ancient seawater preserved from the last Ice Age