Watch Ancient Aliens Online. Find Full Episodes from all the Seasons. If Ancient Aliens visited Earth, who were they, and where did they come from?
Wednesday, January 9, 2019
Return to Mars-S11/E15
As humanity prepares to establish colonies beyond Earth, are we simply realizing mankind's future or returning to its extraterrestrial past? And when humans become the alien visitors on other planets, what—or whom—will we encounter?