there is no confirmed scientific evidence of any known alien civilizations in our galaxy that can communicate with each other or with us through radio waves or any other means of communication. The search for extraterrestrial intelligence (SETI) has been ongoing for several decades, utilizing various methods to detect potential signals from extraterrestrial civilizations, including radio telescopes and other advanced technologies. However, no conclusive evidence of intelligent alien life or direct communication has been found to date.
It's important to note that the vastness of the universe and the sheer number of galaxies, stars, and planets suggest that it is statistically probable for other intelligent civilizations to exist. However, the lack of evidence could be attributed to various factors, including the vast distances between stars, the limitations of our current technology, and the challenges in detecting and interpreting potential alien signals.
Scientists and researchers continue to explore and study the cosmos in the hope of one day discovering signs of extraterrestrial life or developing more advanced methods of communication and detection. The search for alien civilizations remains an ongoing and exciting area of scientific exploration, but as of now, no confirmed communication with extraterrestrial civilizations has been established.