The concept of interdimensional space travel is largely speculative and falls within the realm of science fiction rather than established scientific theory. While there are scientific theories and hypotheses about the existence of additional dimensions beyond the three spatial dimensions we experience, such as in string theory and other branches of theoretical physics, practical applications of interdimensional travel are purely speculative at this point.
there is no scientific evidence or widely accepted theories supporting the existence of extraterrestrial life, let alone their ability to travel between dimensions. The search for extraterrestrial life is an active area of scientific inquiry, and various missions and telescopes are being used to explore and gather data from distant planets and moons to assess their potential habitability. While the possibility of extraterrestrial life is intriguing, concrete evidence is yet to be discovered.
It is worth noting that the understanding of the universe and our capabilities as a species are continually evolving. Scientific progress may bring new insights and technologies that could potentially challenge our current limitations. However, until there is concrete scientific evidence and well-established theories supporting interdimensional travel or the existence of extraterrestrial civilizations, it remains speculative.