Our Universe is not the final and the bigger part of the space , but an infinitesimal part of it. Space is constructed as many structures, incorporated one in another. Each object in space moves on a trajectory . The Big Bang and the Big Crach are different points on the trajectory of a structure, much bigger than Our Universe. The shape of Universe is flat, or exactly annular.
Dark matter is a substance accelerated over velocity of light.
The cosmic objects preserve their individuality even under disscrete conditions as swimming in space, unvisible, flat discs of dark matter. Black and White holes are one and the same area in the centrum of the galaxies, plaing the role of substance retarder or accelerator respectively, operating by electromagnetic principle. In the space there are no typical Black holes yet. All rights reserved.