Be warned that the Devil is going to use all he can to lead people astray, even so called “scientific” information about aliens from other planets. They are aliens, yes, however they are not from other planets but from another dimension — the spirit world!
But I do not agree with what Bob Trefz is saying toward the end about the “sons of God” of Genesis chapter 6 not having sex with human women and producing mixed DNA seed. This is purely his interpretation, not what the Bible actually says!
Genesis 6:4 ¶There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown.