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The Millennium that Defines Universe

The Millennium that Defines Universe

Credit & copyright: Credit: Camille Flammarion ; Courtesy: HSC , U. Oklahoma ; Digitization: K. Magruder ( OU ); Coloring: R. J. Nemiroff ( Michigan Tech )

Welcome to millennium three . During millennium two , humanity continually redefined its concept of “Universe”: first as spheres centered on the Earth , in mid-millennium as the Solar System , a few centuries ago as the Galaxy , and within the last century as the matter emanating from the Big Bang . During millennium three humanity may hope to discover alien life , to understand the geometry and composition of our present concept of Universe , and even to travel through this Universe . Whatever our accomplishments , humanity will surely find adventure and discovery in the space above and beyond , and possibly define the surrounding Universe in ways and colors we cannot yet imagine by the threshold of millennium four .

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