Is there anything outside of the universe?

If you take it to mean literally all the things that could possibly exist in all of space and time, then there can’t be anything outside the universe. Even if you imagine the universe to have some finite size, and you imagine something outside that volume, then whatever is outside also has to be included in the universe.

Is our universe colliding with other universes?

In other words, we could look out into space and see a cosmic bruise, and know that’s where our universe is colliding with another one. Well, have astronomers looked out into space, in search of some sign that our Universe is interacting with other universes?

What is the existence of nothing?

In our universe, even a dark, empty void of space, absent of all particles, is still something. “It has a topology, it has a shape, it’s a physical object,” philosopher Jim Holt said during the museum’s annual Isaac Asimov Memorial Debate, which this year was focused on the topic of “The Existence of Nothing.”

Is the universe infinite or flat?

Current observations and measurements of the curvature of the universe indicate that it is almost perfectly flat. You might think this means the universe is infinite. But it’s not that simple. Even in the case of a flat universe, the cosmos doesn’t have to be infinitely big.

Is there no time for the universe?

“There is no time for the Universe and there is no size for the Universe.”. All three of the statements above are categorically false, according to most physicists (especially Einstein!). Time is actually an integral part of the universe.

Could there be life in another universe?

Maybe in another universe, the force of gravity is repulsive, or green, or spawns unicorns. In the vast majority of those universes, no life could ever form, but roll the dice an infinite number of times and you’ll eventually get the conditions for life.

Does time really exist?

Time is certainly a very complex topic in physics, and there are people who believe that time does not actually exist. One common argument they use is that Einstein proved that everything is relative, so time is irrelevant. In the bestselling book The Secret, the authors say Time is just an illusion..