Our planet’s magnetosphere has seen dramatic shifts across its history—even total reversals—but this recent wrinkle doesn’t ...
A new study reveals how shifting ice shells on icy moons can cause dramatic pressure changes, sometimes enough to boil their hidden oceans. The outer planets of our Solar System are accompanied by ...
A 2023 astronaut photo shows three dark hills, or mesas, towering above part of the Sahara desert in southern Mauritania. The ...