Saint Louis University’s Department of Earth and Atmospheric Sciences offers undergraduate and graduate courses covering topics ranging from oceanography to geomorphology to cloud physics. This course ...

Researchers have discovered chemical fingerprints of Earth's earliest incarnation, preserved in ancient mantle rocks. A unique imbalance in potassium isotopes points to remnants of “proto Earth” ...

Earth researchers have spent generations decoding the Grand Canyon, turning its cliffs and chasms into one of the clearest records of our planet’s deep past. These nine Grand Canyon facts, grounded in ...

NASA Earth Science Communications announced closure of The Earth Observer in December 2025. It preserves archives that document nearly 37 years of EOS missions and satellite data.