High-res version

“NASA created this Universe tour using images from the Hubble and other sources, placing each of them in 3D space in relation to our viewing point. Keep in mind that this is only the small fraction of galaxies we have observed with telescopes, there are far far more out there in the universe.”

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“The universe is commonly defined as the totality of everything that exists,[1] including all physical space, time, matter and energy, the planets, stars, galaxies, and the contents of intergalactic space,[2][3] although this usage may differ with the context (see definitions, below). The term universe may be used in slightly different contextual senses, denoting such concepts as the cosmos, the world, or nature. Observations of earlier stages in the development of the universe, which can be seen at great distances, suggest that the universe has been governed by the same physical laws and constants throughout most of its extent and history.”