Scroll Down there's lots of good information here.\
A lens bends light, and can make all sorts of images. Out in space, strong gravity, like that of the Sun or stars also bends gravity. Thus, a large body can make a gravitational lens producing all sorts of images.
Light also doesnt stop unless it runs into something. So these new images can go on for eons. And what we do see happened a long time ago.
As a result, much of what we see out there, is a reflection, or more precisely, a refraction of at least one star, (Sun) and at least one galaxy. Sure there could be more, but we have no way of knowing for sure, until we go there. And to do that well have to be able to go faster than light, at warp speed.
Its only logical.
Thanks for your interest.