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Located deep in the mountains of Guizhou, the Chinese Sky Eye is the largest radio telescope on Earth, with an astonishing 500-meter aperture and sensitivity large enough to listen in on communications on the moon.
However, since it began operation in 2016, the Chinese sky eye has not been just a detection tool for pulsars. Recently, Zhang Tongjie, chief scientist and cosmologist of the Chinese Alien Civilization Research Group, claimed that the "Eye of Heaven" has captured some narrow bands of electromagnetic signals that are different from previous signals, suggesting that signal clues to extraterrestrial intelligence may have been detected.
However, Zhang also acknowledges that these suspicious signals may also be just some kind of radio interference. Nevertheless, the discovery has attracted widespread attention and sparked a strong interest in extraterrestrial life. Because of the ultra-high sensitivity of the Sky Eye, it is able to capture faint radio waves from billions of light-years away, including pulsars and galactic material.
From the end of 2020, one of the main tasks of China's Sky Eye is to look for signs of extraterrestrial life. In this project, scientists at Beijing Normal University and the University of California, Berkeley, have analyzed two sets of signals that may reveal whether there are traces of other intelligent life in the universe.
However, the latest news about alien civilizations and UFOs originated in the United States. In 2021, the United States released a report on UFOs, UFOs that have been present for decades, marking the first time the US government has publicly acknowledged the existence of these strange phenomena.
In fact, as one of the most technologically advanced countries in the world, the United States has long had a "tradition" of UFOs and aliens. From the earliest Roswell incident to the later Area 51, it seems that various alien civilizations on Earth have chosen to come to the United States, although later declassified documents show that the vast majority of UFOs are classified aircraft, such as Blackbird reconnaissance aircraft, etc., but there are still many people who believe that the US government actually hides flying saucers and aliens.
However, regardless of our fantasies about science fiction, it is not easy to capture the signals of alien civilizations just from the current level of human technology. This is because electromagnetic waves decay rapidly in the universe. When radio signals from intelligent life from the depths of the universe travel tens of millions of light-years to Earth, radio telescopes on Earth may not be able to recognize them.
Unless the source of the electromagnetic wave signal of the alien civilization is located nearby, or the transmission power of the signal is extremely high, reaching the level of stars or even higher, only this cosmic broadcast is likely to be detected by humans. But even so, it is still questionable whether alien civilizations will use electromagnetic waves to transmit information, because electromagnetic waves are susceptible to interference and distortion. In fact, there are more advanced information transfer media, such as neutrinos and gravitational waves. Neutrinos hardly interact with matter and can transmit information to the end of the universe without loss, while gravitational waves travel at the speed of light and use gravitational action to transmit information, which can quickly travel throughout the universe.
These two advanced communication methods are more in line with the needs of advanced civilizations in the universe. Humans currently have limited understanding of these two methods, so instead of pinning hopes on radio telescopes, it is better to increase research and investment in neutrino and gravitational wave detection.
In short, both China's "eye of heaven" and the US UFO report show that human beings are full of enthusiasm and determination to explore the unknown world. Although we are not yet sure whether these signals actually come from alien civilizations, these discoveries provide us with more possibilities and enlightenment, and inspire us to continue our pursuit of the secrets of the universe. It may take more time and effort to finally solve these mysteries and reveal whether there is other intelligent life in the universe.
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