alien civilizations
"Alien civilizations" refers to advanced forms of extraterrestrial life that exist on other planets or celestial bodies, possessing societies, cultures, and technologies beyond those found on Earth.
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Related Concepts (2)
Similar Concepts
- advanced extraterrestrial civilizations
- alien artifacts
- alien communication
- alien contact
- alien encounters
- alien experimentation
- alien hybrids
- alien intelligence
- alien invasion
- alien spacecraft
- alien weaponry
- ancient aliens
- ancient civilizations
- extraterrestrial civilizations
- futuristic civilizations