Is an infinite universe possible?

An infinite universe could have a geometry that is totally flat like a piece of paper. Such a universe would go on forever and include every possibility — including endless versions of ourselves. On the other hand, a donut-shaped universe would have to be finite, as it’s closed.

Is there a limit to the universe?

But if you define it as the limits of the unobservable Universe, the only limit we have is that it’s at least 11,500 billion light-years in size, and it could be even larger. This doesn’t necessarily mean that the Universe is infinite, though.

How can the universe be infinite if it had a beginning?

How can the universe be infinite if it started expanding 13.8 billion years ago? If the universe is infinite, it has always been infinite. At the Big Bang, it was infinitely dense. Since then it has just been getting less dense as space has expanded.

Does the past still exist?

In short, space-time would contain the entire history of reality, with each past, present or future event occupying a clearly determined place in it, from the very beginning and for ever. The past would therefore still exist, just as the future already exists, but somewhere other than where we are now present.

Is an infinite universe possible? – Related Questions

What’s beyond the universe?

The trite answer is that both space and time were created at the big bang about 14 billion years ago, so there is nothing beyond the universe. However, much of the universe exists beyond the observable universe, which is maybe about 90 billion light years across.

How is the universe expanding if it is infinite?

So essentially, if the universe is of infinite magnitude, it cannot possibly be expanding into anything. Rather, it’s stretching (it’s a fine distinction, but an important one). Simply put, every region of the universe, every distance between every pair of galaxies, is being “stretched,” pulled apart like taffy.

How do we know that space 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.

How did the universe begin?

The Big Bang was the moment 13.8 billion years ago when the universe began as a tiny, dense, fireball that exploded. Most astronomers use the Big Bang theory to explain how the universe began.

How did space come from nothing?

Virtually all astronomers now believe that the universe sprang forth in what is known as the “Big Bang” explosion, from a state of extraordinary compression and phenomenally high temperature in which forces such as gravity and electromagnetism were unified in a single, all-encompassing force.

How will the universe end?

In the unimaginably far future, cold stellar remnants known as black dwarfs will begin to explode in a spectacular series of supernovae, providing the final fireworks of all time. That’s the conclusion of a new study, which posits that the universe will experience one last hurrah before everything goes dark forever.

What was there before the universe?

In the beginning, there was an infinitely dense, tiny ball of matter. Then, it all went bang, giving rise to the atoms, molecules, stars and galaxies we see today. Or at least, that’s what we’ve been told by physicists for the past several decades.

When did time begin?

According to the standard big bang model of cosmology, time began together with the universe in a singularity approximately 14 billion years ago.

How many universes are there?

In a new study, Stanford physicists Andrei Linde and Vitaly Vanchurin have calculated the number of all possible universes, coming up with an answer of 10^10^16.

Who created God?

We ask, “If all things have a creator, then who created God?” Actually, only created things have a creator, so it’s improper to lump God with his creation. God has revealed himself to us in the Bible as having always existed. Atheists counter that there is no reason to assume the universe was created.

Does nothingness exist?

There is no such thing as nothingness, and zero does not exist.

What does nothing look like?

Absolute nothingness is, by definition, colorless and transparent. In an area of nothingness, there is the absence of anything to emit any light (or anything else) and the absence of anything that changes the color of any light (or anything else) passing through it.

What do blind people see when they dream?

Some blind people see full visual scenes while they dream, like sighted people do. Others see some visual images but not robust scenes. Others yet do not have a visual component to their dreams at all, although some researchers debate the degree to which this is true.

Do blind people see nothing?

A person with total blindness won’t be able to see anything. But a person with low vision may be able to see not only light, but colors and shapes too. However, they may have trouble reading street signs, recognizing faces, or matching colors to each other. If you have low vision, your vision may be unclear or hazy.

What do blind people do all day?

At the Colorado Center for the Blind, people with vision loss learn how to cook, use computers, travel with a cane, and tackle home repairs without any need for sight. Students even try outdoor adventures, like whitewater rafting and rock climbing.