there is no definitive scientific evidence to suggest that our universe contains another planet exactly like Earth that spans its entirety. Our current understanding of the universe is based on observations of various celestial bodies, and while we have discovered numerous exoplanets (planets orbiting stars outside our solar system), none of them have been found to be a complete replica of Earth.
However, it is important to note that the universe is vast and continually expanding, with countless galaxies, star systems, and planets yet to be explored or discovered. The possibility of finding a planet similar to Earth, or even one that could support life as we know it, remains an intriguing subject of scientific exploration and research. Future advancements in technology and space exploration may provide us with new insights and discoveries in this area.