How can the universe possibly be endless?
They will never collide or drift apart because space isn’t curved. Imagine a 2D sheet of paper that extends forever to understand how an infinite flat universe might exist. However, it is also possible for it to be finite: picture rolling a piece of paper into a cylinder and joining the ends to form a torus (doughnut) shape. A super universe might exist beyond the boundaries of our own. Our tiny universe, which is a bubble, may eventually expand into an infinitely large region of outer space. Other island universes similar to our own could be lying hundreds of billions of light years away.The fact that the characteristic distance between objects is growing locally leads us to believe that space is expanding even though the universe’s overall spatial extent is infinite and cannot grow any larger. An infinite space never runs out of room.We may never be able to travel an infinite distance in finite time, so even if the universe is infinite, we may never know about it. We could try to go just far enough to meet other versions of ourselves, but that might also be impossible. The universe is expanding first and foremost.
If there was a beginning, how can the universe be infinite?
While it’s possible that space was infinite at the Big Bang, it’s also possible that it was condensed into a single point at that time. Both times, matter started to expand after filling the entire available volume of space. The universe is expanding at all points; there is no center to the expansion. There doesn’t appear to be an edge to the universe as far as we can tell. The expanse of space is infinite in all directions. Galaxies also cover every square inch of the limitless universe. Logically combining two observations leads to this conclusion.
Do scientists think the universe has no end?
Whether or not the universe is finite is unknown. Think of the geometry of the universe as a plane in two dimensions as an illustration. A plane is typically infinite, but this one is flat. Although the concept of infinity has a mathematical foundation, we have not yet conducted an experiment that produces an infinite result. Even in mathematics, it is paradoxical to think that something could have no limits.
Did Hawking believe in an endless universe?
Hawking demonstrated in his thesis that the Steady State theory is mathematically incoherent and that the Big Bang wins. He argued that the universe actually started as a singularity, which is an infinitely small and dense point. Today, scientists almost universally concur with Hawking’s description. The multiverse is a vast ocean of universes, of which our own is merely one tiny piece. If that idea is still difficult for you to grasp, there are various types of multiverses described in physics. The cosmological multiverse is the most straightforward to understand.Noun. In science fiction, the term omniverse refers to all coexisting universes, multiverses, etc.The phrase multiverse was first used by American philosopher William James in 1895 to describe the perplexing moral significance of natural phenomena, not the existence of additional universes.The big bang theory, which was once debatable but is now generally accepted as true, holds that the universe instantly expanded from a tiny point known as a singularity. This idea is the basis for the idea of the multiverse.
Can we establish that the universe is limitless?
The universe may be infinitely large or merely very large, according to cosmologists. Instead, astronomers examine the curvature of the universe to determine its size. We can learn about the universe’s general shape from its geometric curve at large scales. Infinity is a possibility if the universe is perfectly flat geometrically. A region where the galaxies stop or where there would be a physical barrier of some kind designating the end of space are now thought to be unlikely candidates for the universe’s end by scientists.All of the galaxies that we can currently see, roughly 100 billion of them, will eventually vanish beyond our ability to detect them because the expansion will continue indefinitely and pick up speed. The visible universe will only contain our galaxy. After the stars have burned out, the universe will be genuinely chilly, dark, and empty.All the matter in the universe will be compressed together as the universe gets smaller and smaller, and galaxies will collide. Time will come to an end when the universe is once more crammed into an incredibly small space.Practically speaking, we are incapable of even imagining the end of space. The space between the multiverses is a void. In just a few seconds, the entire universe will have traveled billions of kilometers. Such universes exist in an infinitely large space and have no beginning or end.
Could the cosmos last forever?
A region where the galaxies stop or where there would be a physical barrier of some kind designating the end of space are now thought to be unlikely candidates for the universe’s end by scientists. Our ability to travel through the expanding Universe is limited by the existence of a cosmic horizon, and as of right now, anything more than 18 billion light-years away is effectively out of reach.The rate of this expansion may eventually rip the Universe apart, causing it to end in a Big Rip. A Big Crunch would effectively reverse the Big Bang and end the universe if the universe were to shrink, decrease, or decay.The universe will drift apart until galaxy and star formation stops billions of years in the future, long after Earth is destroyed. Stars will gradually disappear, leaving the night skies completely dark. Until there is nothing left, black holes will consume all remaining matter.In the Big Rip scenario, assuming a dark energy model with w = 1. Universe could end is 22 billion years from now.