Thanos initiated his "legacy" following his death (Marvel Two-In-One Annual #2), activating a preprogrammed system within ISAAC, the main computer of his homeworld, one of Saturn’s moons, Titan; this included dominating the Titan-spawned Elysius, imprisoning the native Eternals (at least the threatening members) behind a forcefield, and creating several beings in Life-Baths. Drax the Destroyer sensed Thanos’ participation in this and attracted Captain Mar-Vell in the process.