If space beyond our universe is infinite does that mean there is no such thing as size. Could our universe be contained in an atom upon a pin head in another world within another universe which in turn is in contained in another atom and so forth.
firstly,universe is something which contains everything,not an atom in a pin.so,there is nothing beyond the universe..it does have a shape.astronomers now say that the universe is of 47 million light years in radius