Odysseus Crater

An enormous crater on Tethys, moon of Saturn, Odysseus Crater spans an impressive 450 kilometers of the ice moon's northern hemisphere - nearly two-fifths of its entire diameter.

The moon itself is only 1062 kilometers wide and was nearly shattered in half by the impact that created the crater. Tethys likely held itself together because when the impact occurred that formed Odysseus, the moon was still partially molten. It was able to absorb some of the energy of the impact and thus avoid disintegration - although it was left with quite the battle scar as an eternal reminder.

The central peak of Odysseus has collappsed, leaving a depression - another indication that the moon wasn't entirely solid at the time of impact.