Answer: First, let's define “aliens” as “beings capable of making moral choices, having intellect, emotion, and a will.” Next, a few scientific facts:
Jibu: Kwanza, wacha tulifafanue neno “wageni” kama “kuwa na uwezo wa kufanya maamuzi ya kimaadili, kuwa na akili, hisia na hiari.” Enye kufuata ni hoja za kisayansi: