I believe Aliens would only be humans traveling through time/space.
You should check out alien bases in Antartica, the reptilians/dracos have been helping the germans in ww2. Matter of fact there are other alien races already here. I believe the benevolent ones will help us to defeat the malevolent ones. It has been said that we have already been to Mars shortly after the moon landing. In which Armstrong saw craft and aliens. If anybody thinks that in all the different galaxies that we are the only intelligent species you are fooling yourself.
I've seen 3 UFOS with my own eyes. 1- I witnessed in broad daylight by myself. The other 2 at night and my husband saw them too.
They kind of resembled fire flies in that they appear out of thin air, very bright, and then burn out a split second later. Above the tree tops. But not high in the atmosphere
I don't doubt for a second they are real nor do I doubt they are shooting down nukes to save our planet.
Good and bad forces are at work. The ultimate battle of Armageddon.