Thanks A51 - with all that we see, know, and are learning, we really do not have a clue to what is the actual enormous reality of space and the Universe. An un-birthed baby probably learns more about its outside-the-womb surroundings before being born, than we have yet learned about our surrounding magnificent Universe. Our off-Earth Universe is/will be a paradigm-to-the-umpteenth-power change relative to all that we have learned yet to date. Right now, our understanding has no real grasp of what is out there, and certainly no understanding of its possibility of being infinite!
But, we can still enjoy the beauty of what such as this presents, as it heightens our desire and will to know even more!!