Overview

• The asteroid was approximately 20 times larger than the one that caused the dinosaur extinction on Earth.
• Simulations indicate the impact created a crater up to 1,600 kilometers wide.
• The collision shifted Ganymede's rotational axis, reorienting its position relative to Jupiter.
• The impact likely influenced the moon's thermal and structural evolution, including its subsurface ocean.
• ESA's JUICE mission, arriving in 2034, aims to provide further insights into Ganymede's history and the impact's effects.