there is currently no scientific evidence or credible speculation suggesting that humans exist or have traveled to any other galaxies beyond our own Milky Way galaxy.
The Milky Way is a large spiral galaxy that contains our solar system, and it is estimated to be about 100,000 light-years in diameter. While the idea of humans venturing to other galaxies has been a staple of science fiction, the vast distances and the limitations of our current technology make intergalactic travel an enormous challenge.
The nearest large galaxy to the Milky Way is the Andromeda Galaxy, which is approximately 2.5 million light-years away. Even reaching the closest galaxy would require significantly advanced technology and time scales far beyond what we currently have or can envision.
At present, our exploration efforts, both manned and unmanned, have been primarily focused on our own solar system, including missions to the Moon, Mars, and beyond. Exploring other galaxies and potentially encountering intelligent life beyond our own remains speculative and an area of ongoing scientific inquiry, but it is important to note that there is currently no evidence supporting human presence in other galaxies.