Question

what are extra terrestrials?
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Answer 1

Answer:

(in stories) a creature that comes from another planet; a creature that may exist on another planet

(कहानियों में) अन्‍य ग्रह से आने वाला प्राणी; अन्‍य ग्रह पर रहने की संभावना रखने वाला प्राणी

Answer 2

Explanation:

Extraterrestrial life is hypothetical life which may occur outside Earth and which did not originate on Earth. Such life might range from simple prokaryotes to intelligent beings and even sapient beings, possibly bringing forth civilizations which might be far more advanced than humanity.