Ancient Aliens Season 13

HISTORY's hit series "Ancient Aliens" returns with a two hour premiere Friday, April 27 at 9PM ET/PT in its continued global search for proof that extraterrestrial life exists and these unknown lifeforms visited Earth thousands of years ago. If aliens are among us, how have they impacted our world and how will people react to this discovery? From recent breaking news on the U.S. government's funding of UFO research to recently discovered hidden facts behind chambers in Egypt's Great Pyramid, each new episode covers various alien-related topics with historic detail, first-hand accounts and interviews with the world's top scientists, archaeologists and researchers.