Nature & Science: Where Physics Ends Philosophy Begins

Why do stars shine? How do galaxies form? How and when did life on Earth begin? Did the same happen anywhere else? Are there other intelligent beings and alien forms of life? Are there other universes? Multiverse? Parallel universes and alternate timelines? As far as we know, our universe - space, time, matter, energy, and everything else, including us, began some 13.8 billion years ago. My fellow travelers, come. Let's embark on a one-way journey to the far end of the universe and beyond.