An alien abduction is when a human is removed from his/her environment by a non-human lifeform, usually involves a bright light/beam transporting the human to an unknown craft/room, experimentation involving reproductive organs, sighting of strange beings, and light to severe memory loss. Some of the of the most compelling evidence of extraterrestrials comes from alien abductees themselves and many of the captives are normal people whose lives were ultimately changed by the experience.