What's Bigger Than The Universe?

What's bigger than the Universe?

By : John Whitworth / Updated : Dec 13th, 2025 16:32

The universe is infinitely massive, but some think it is not, and there might be something larger.

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The Universe is supposed to contain everything: all the stars, the galaxies, planets, etc. So you can't have something bigger than everything, can't you? The observable universe is currently estimated to be 93 billion light-years across. Nine Planets

As the obserable universe is 93 Billion Light Years across, does that it stops, does that mean you hit a wall? Outside the observable universe is the unobserved universe that is infinite in size. You can't put a size on the universe because you don't know what's out there.

Unobserved universe is part of the universe where light has not reached us yet. Our current calculations of the age of the Universe is 13.8 billion years ago and if it is older then the Universe has just got a little bigger. There are galaxies out there that we may never discover because they are so far away because their light is still on its way to us.

There is a theory called the Multiverse and Parallel Universe / Worlds Theory, which imagines that our universe is not the only one, but there are other universes out there. It's not been proven yet.

There are different types of Multiversal theory. Here are two examples:-

• Many Worlds - there are alternate versions of our reality/universe, but they differ slightly. Maybe you made a decision this morning, but in the other universe, you made another decision. The alternate universe is hard to quantify where it is because we don't know. This type of multiverse is the central theme of the Sliders television show.
• Bubble Universes - each universe exists in a bubble, each with its own rules, somewhere even matter didn't form and therefore nothing exists.

If you visit the Multiverse page, link above, you can learn about all the other types of multiverses.

There is a theory that says that our universe came into existence because two alternate universes collided and created the Big Bang. It is hard to prove whether it is true and, therefore, just a theory.

The Multiverse is larger than the universe if it exists. Some people say there's what's called an Omniverse, which is made up of Multiverses, but you can say that's just getting slightly silly. Some refer to the multiverse as the Omniverse.

If you want me to answer the question what is bigger than the universe ? All I'm going to say is that I am going to change the meaning of universe in the question to mean the unobserved universe.

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Next Article : What is the Smallest Galaxy in the Universe? Previous Article : What is the largest Milky Way ?

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