Why is the universe infinite?

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.

Why is the universe not infinitely old?

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 ever stop?

Many think it’s likely you would just keep passing galaxies in every direction, forever. In that case, the universe would be infinite, with no end. Scientists now consider it unlikely the universe has an end — a region where the galaxies stop or where there would be a barrier of some kind marking the end of space.

Why is sky dark at night?

But the sky is dark at night, both because the universe had a beginning so there aren’t stars in every direction, and more importantly, because the light from super distant stars and the even more distant cosmic background radiation gets red shifted away from the visible spectrum by the expansion of the universe.

How many universes are there?

one universe
The only meaningful answer to the question of how many universes there are is one, only one universe. And a few philosophers and mystics might argue that even our own universe is an illusion.

What is the cause of the universe?

Everything that begins to exist has a cause. The universe began to exist. Therefore, the universe has a cause. This is a logically airtight argument. That is, if we can demonstrate that both premise (1) and (2) are true, the conclusion (3) necessarily follows as true.

Does the universe have a beginning?

If the universe had a beginning, then it must have a cause, and therefore cannot be eternal. And every drop of evidence we have points to the universe having a beginning, but this truth is not something welcomed by naturalists and atheists.

Is the premise (1) true for everything in the universe?

Additionally, others have adopted the position that premise (1) is true for all things inside the universe, but it’s not necessarily true of the universe itself. The problem with this view is that it commits the taxicab fallacy.

Why did Einstein believe the universe is not eternal?

After his acknowledgment, and upon confirming further research that showed the universe expanding just as his theory of relativity predicted, Einstein bowed to the fact that the universe is not eternal and said that he wanted “to know how God created the world.” Further, it should be understood that every effect must resemble its cause.