Is the universe infinite or does it have any boundaries?

The universe (observable or otherwise) has no boundary in the physical sense. The universe exists everywhere and and is approximately the same everywhere. The expansion means not that more universe is being created, but that the distance between things and other things, on average, increases.

Does space have a boundary?

THE theory of relativity tells us that observable space may not be infinite in extent, but it does not postulate a boundary; “finite but unbounded” is the usual phrase.

How do we know universe is infinite?

To measure the universe, astronomers instead look at its curvature. The geometric curve on large scales of the universe tells us about its overall shape. If the universe is perfectly geometrically flat, then it can be infinite. If it’s curved, like Earth’s surface, then it has finite volume.

Is the universe big or infinite?

The observable universe is still huge, but it has limits. That’s because we know the universe isn’t infinitely old — we know the Big Bang occurred some 13.8 billion years ago. That means that light has had “only” 13.8 billion years to travel.

Does the universe have an edge or center?

As far as we can tell, there is no edge to the universe. Space spreads out infinitely in all directions. Furthermore, galaxies fill all of the space through-out the entire infinite universe. This conclusion is reached by logically combining two observations.

Does the universe have an infinite past?

What is the boundary of the universe?

The universe (observable or otherwise) has no boundary in the physical sense. This is one of the most commonly seen misunderstandings about physical cosmology. The universe is not a bubble expanding into a preexisting volume. The universe exists everywhere and and is approximately the same everywhere.

Is the universe infinite or finite?

Because space isn’t curved they will never meet or drift away from each other. A flat universe could be infinite: imagine a 2D piece of paper that stretches out forever. But it could also be finite: imagine taking a piece of paper, making a cylinder and joining the ends to make a torus (doughnut) shape.

Is there an infinite number of possibilities in the universe?

Our existence is inherently defined by boundaries and limitations, so an “endless” number of possibilities is inconceivable. However, if the universe is infinite, then there is a probability (however small) that the exact same arrangement of atoms and molecules exists elsewhere.

Is there an “outside” universe?

This suggests that there is an “outside” to the universe, as though one could theoretically step outside and then observe from outside the system. However, we have no evidence to suggest that such an “outside” exists, which makes a strong case for the infinite universe theory. Could It Be Infinite?