Jupiter’s Largest Moon Has a Rare Magnetic Field. A Strange Theory May Explain It

A new study suggests Ganymede—our neighborhood's biggest moon—still has a hot, churning core cranking out its unique magnetic ...
Space.com

Satellites imaged an underwater volcano erupting — but scientists have no idea what's actually happening on the seafloor

"This new eruption could present an even better opportunity for 'island-naut' exploration as we prepare to return to the moon with women and men via Artemis IV." ...