The expansion of the universe, the question of the speed of light, the current expansion rate of the

Since the expansion of the universe is mentioned, another idea must be involved, whether the universe is finite. If the universe is finite, it can't be far enough. In fact, at a distance of enough distance, the mathematical model of the universe is used to simulate it has always been an undecided question.

Now your question lies in intuitively combining the subconscious view of the universe of classical mechanics with some inferences about the universe in the theory of relativity. Of course, there will be doubts.

Here, either you will completely abandon the view of classical mechanics and use any of the principles of classical mechanics to reason about the motion of great distances, great masses, and great speeds. Otherwise, simply treat the theory of relativity as non-existent and only use classical mechanics to think about the problem. Classical mechanics is used here, and there are inferences based on the theory of relativity, and of course there will be contradictions.

That's right, at 50 billion light-years away, galaxies are moving away faster than the speed of light. As a result, the light of galaxies now 50 billion light-years away will never reach Earth.

This can be explained by one thing: the event horizon, black holes have an event horizon, the universe also has an event horizon, and the edge of the event horizon can be thought of as the visual boundary of the universe, and the maximum speed of an object within the event horizon is the speed of light, and if you go beyond the event horizon, the velocity is not verifiable.

It's a philosophical question ...

Yes, the cosmic space expands faster than the speed of light.

The theory of relativity says that the speed of light cannot be exceeded, in fact, it means that the speed of information propagation in space cannot exceed the speed of light, but there is no contradiction between this and the expansion of space itself beyond the speed of light.

In fact, because of the expansion of the universe, the farther away from us celestial bodies recede, the faster they recede, and some celestial bodies are indeed attacking faster than the speed of light, and we will never see them.

The "Great ** Cosmology" holds that the universe was formed by a dense and hot singularity that expanded after a large ** 13.7 billion years ago. In 1927, the Belgian Catholic priest Georges Lema Tre first proposed the cosmic hypothesis.

In 1929, the American astronomer Hubble proposed Hubble's law that the redshift of galaxies is proportional to the distance between galaxies, and deduced the theory of cosmic expansion that galaxies are moving away from each other.

The skyrocketing hypothesis holds that the universe experienced faster-than-light skyrockets in the very early days.

Starts at 10 36 seconds after the big ** and lasts between 10 33 and 10 32. Driven by the vacuum energy of negative pressure, the universe expanded by at least 10 78 during this period, well above the speed of light.

In addition, the speed at which the universe expands relative to the Earth is not fixed, and the latest correction of the Hubble constant is that the rate of expansion of the universe per million parsecs (3.26 million light-years) is about 68 kilometers per second.

Because the expansion of the universe is the expansion of the whole space, just like blowing up a balloon, if the earth is a point on the balloon, then the other points in the process of blowing up the balloon, the closer they are, the slower the speed of moving away, the farther away, the faster they are moving away.

According to the Hubble constant, if you are 3.26 million light-years away from the Earth, the speed of the universe is 68 kilometers per second because of the expansion of the universe, then if you are 3260 light-years away from the Earth (10 million parsecs), the speed of the distance from the Earth due to the expansion of the universe reaches 680 kilometers per second.

By analogy, you'll find that 14.3 billion light-years away from Earth, the universe will expand and move away from Earth at the speed of light – which is exactly the time it takes for the light from the birth of the universe to reach Earth.