History Main / HumanityCameFromSpace

* In season 9 of ''Series/StargateSG1'' it turns out that the [[AdvancedAncientHumans Ancients]] weren't originally from Earth but came from a different galaxy altogether, and that they were fleeing a war with religious fanatics who have since then AscendedToAHigherPlaneOfExistence like them, who unlike the Ancients, want to be worshiped.

* ''Film/{{Outlander}}'' mentions that Earth is an "[[LostColony abandoned seed colony]]" of Kainan's species.

* In season 9 of ''Series/StargateSG1'' it turns out that the [[AdvancedAncientHumans Ancients]] weren't originally from Earth but came from a different galaxy altogether, and that they were fleeing a war with religious fanatics who have since then AscendedToAHigherPlaneOfExistence like them, but unlike the Ancients they want to be worshipped.

Contrast TransplantedHumans (humanity did originate from Earth, but some ancient humans were taken away by aliens to settle another planet) and {{Ultraterrestrials}} (supposedly "extraterrestrial" nonhumans are actually natives to Earth). Subtrope of AlienAnimals. When humans inhabit a planet other than Earth and have forgotten they came from a different planet it's a LostColony. Not to be confused with HumanAlien. Usually involves AdvancedAncientHumans, which is any case where the supposed {{Precursors}} were indeed human, regardless of their spatial origin. Compare {{Panspermia}}, where '''all''' life on Earth originated from space (and thus may or may not overlap with this trope) as well as OriginalMan, where the older form of humanity is noticeably distinct from the newer.

* ''Series/TheTwilightZone1959'': In the episode "[[Recap/TheTwilightZoneS5E129Probe7OverAndOut Probe 7, Over and Out]]", an astronaut crash-lands on an uninhabited planet after his homeworld has a nuclear war, and shortly after meets a woman whose homeworld was destroyed. Their names turn out to be {{Adam and Eve|Plot}}.
* ''Series/TheTwilightZone1985'': In the episode "A Small Talent For War", it's revealed that humanity was seeded on Earth by aliens, and that they are very disappointed with our progress [[spoiler: in becoming warriors]].

* The later ''Franchise/{{Halo}}'' games revealed that humanity [[AdvancedAncientHumans once had a large space empire thousands of years ago]] but were beaten back to the caveman level on Earth after a war with the [[{{Precursors}} Forerunners]]. [[ZigZaggingTrope However]], not even the scientist from that empire could tell for sure whether or not Earth was where humans came from.

Contrast TransplantedHumans (humanity did originate from Earth, but some ancient humans were taken away by aliens to settle another planet) and {{Ultraterrestrials}} (supposedly "extraterrestrial" nonhumans are actually natives to Earth). Subtrope of AlienAnimals. Not to be confused with HumanAlien. Usually involves AdvancedAncientHumans, which is any case where the supposed {{Precursors}} were indeed human, regardless of their spatial origin. Compare {{Panspermia}}, where '''all''' life on Earth originated from space (and thus may or may not overlap with this trope) as well as OriginalMan, where the older form of humanity is noticeably distinct from the newer.

* In ''Series/TheTwilightZone1959'' episode "Probe 7 - Over and Out" an astronaut crash-lands on an uninhabited planet after his homeworld has a nuclear war, and shortly after meets a woman whose homeworld was destroyed. Their names turn out to be Adam and Eve.

* In the final episode of ''Series/Space1999'' the Alphans come across a planet called Arkadia that hosts the ruins of a 25,000-year old human civilization, and they gradually figure out that it was humanity's original homeworld.

* The later ''Franchise/{{Halo}}'' games revealed that humanity [[AdvancedAncientHumans once had a large space empire thousands of years ago]] but we're beaten back to the caveman level on Earth after a war with the [[{{Precursors}} Forerunners]]. [[ZigZaggingTrope However]], not even the scientist from that empire could tell for sure whether or not Earth was where humans came from.

* ''Film/JupiterAscending'' is one of the few examples where humanity's ancient star-faring empire is still around, and Earth is one of their PeopleFarms for LongevityTreatment ingredients. They also killed the (sapient) dinosaurs.