You can travel with the speed of light at the most. That can be the limit. That is the maximum speed that you can reach out. It will take about 14 billion years to cross your universe. So you have to spends the generations in space ship. Better go to your neighbor. You probably never had been there for years.
At this point there is no actual evidence there are other universes, but some theories predict them. There is no way to know whether humans will go to these theoretical universes, but right now it seems very unlikely.
It is thought that there are other universes that look like ours. It is also been suggested that there are an infinite number of universes.
There has been a lot of speculation about other universes, but it is just that: speculation. There is no firm evidence that other universes actually exist. Nor, for that matter, is there any firm evidence that other universes DON'T exist.
if they do find or make a wormhole, we can use it as a time machine and go to other universes.
Parallel universes may, or may not, exist. While it is hypothesized that there may be other universes, there is no certainty that they do exist - nor, for that matter, is there any certainty that they DON'T exist. Since we don't know whether such "ohter universes" exist, we don't know what they look like either - although it has been speculated that other universes may have a different number of dimensions, or there may be other significant differences in physical laws, compared to our own universe. If this is the case, most such universes may be unsuitable for any sort of life.
'Multiverse' is an abstract noun because by definition it is purely hypothetical. It suggests the possibility of other universes and by definition we could never physically interact with other universes even if they exist. Other universes are not perceptible to our senses. They are physically disconnected from our universe.
The existence of parallel universes has not been confirmed. If they do exist, they would likely be inaccesible from our Universe. In other words, they would not be in any direction that we can go to. You can think of them as being in other dimensions (i.e., directions other than up/down, east/west, or north/south, or anything in between).
The existence of multiple universes is a theoretical concept in physics, such as the multiverse theory. Some formulations of this theory suggest the possibility of parallel universes or alternate realities, but currently, there is no empirical evidence to support the existence of other universes beyond our own. It remains a topic of ongoing scientific investigation and debate.
That is unknown. Some hypotheses based largely in mathematics have suggested that this is possible, but there is no direct eveidence that other universes exist.
According the the Multiverse Theory, our universe exists as a bubble among a plane of countless other universes, though that's not the limit to how many there are. This plane, which contains many universes, is just a bubble itself, floating in a sea of other bubbles. This sea is just a bubble, too, on a plane of other bubbles, each containing planes, seas, bubbles, planes, and bubbles. According the the Multiverse Theory, there are an infinite number of other universes.
"Impossible."
That's related to the idea that there are other universes, other than the one we are in.