Remember I wrote about how species mostly don't come in the physical, but nano-travel without bodies or spaceships.

Remember I wrote about how species mostly don't come in the physical, but nano-travel without bodies or spaceships. 

Spaceships are really not necessary to travel the Universe, except for beings who are not evolved enough to put technology aside and travel in spirit. When doing the latter, they can use their avatar to mock themselves up as any kind of being they like; humans, grays, reptilians, giant moth men, winged dragons -- you name it. These invaders do everything they can to confuse and manipulate us.