A trick question? According to the basic theory, it is infinite, but there is a so-called observable universe that we can see. It's also called the Hubble sphere. There are other stars outside. Why is it infinite? Because the speed of its expansion is faster than the speed of light. This is impossible, you will say, because it is the greatest speed at which a particle can move in space. But here the particles do not move, here space itself expands. So, so it's not that you can't fly to the edge, you just can't see it, because we can see at the speed of light, and the end of the universe, if there is one, is moving faster away from us.
On the topic of the Universe. Scientists have found SOMETHING right on the edge of the Hubble sphere that pulls space back more strongly than anything else. It is suspected that this is the point of contact of our Universe with another Universe, or its edge.
A trick question? According to the basic theory, it is infinite, but there is a so-called observable universe that we can see. It's also called the Hubble sphere. There are other stars outside. Why is it infinite? Because the speed of its expansion is faster than the speed of light. This is impossible, you will say, because it is the greatest speed at which a particle can move in space. But here the particles do not move, here space itself expands. So, so it's not that you can't fly to the edge, you just can't see it, because we can see at the speed of light, and the end of the universe, if there is one, is moving faster away from us.
On the topic of the Universe. Scientists have found SOMETHING right on the edge of the Hubble sphere that pulls space back more strongly than anything else. It is suspected that this is the point of contact of our Universe with another Universe, or its edge.