Although China is not the country with the strongest comprehensive national strength, China's economy, culture, military and other aspects are constantly developing, and the development in the space field has attracted much attention in recent years.
After it was completed and put into use on September 25th, 20 16, it has been? 500-meter spherical radio telescope (FAST)? FAST, known as the 500-meter spherical radio telescope, officially began to search for extraterrestrial civilization in 2020, which is used to search for radio signals of intelligent life in deep space.
As the most prestigious national major scientific and technological infrastructure in recent years, FAST, led by the National Astronomical Observatory of Chinese Academy of Sciences and with independent intellectual property rights in China, has been awarded the title of the world's largest single-aperture and most sensitive radio telescope continuously after its formal completion. As far as the technical level is concerned, FAST, whose performance far exceeds that of similar telescopes, will maintain the status of world-class equipment in the next 20-30 years.
It is a spherical radio telescope with a diameter of 500 meters independently developed by China. It is the largest and most sensitive radio telescope in the world. Although there are many pulsars in the universe, the signals of these pulsars are very weak and are very vulnerable to other electromagnetic interference in the environment. Therefore, it is very difficult to observe these pulsars, and few countries do so.
From the relevant aerial photos, we can easily feel the scale of this radio telescope. To sum up, this volume and shape amaze the world? 500-meter spherical radio telescope (FAST)? The aperture of the antenna alone is 500 meters, and its frame length and the reflection surface area of the antenna reach an astonishing 1500 meters and 250,000 square meters, which is equivalent to 30 football fields of standard size.
Radio telescopes such as FAST are very similar to passive radars in the military field in principle, that is, they receive radio signals to find, locate and analyze these electromagnetic signals. Therefore, if there is indeed a radio signal from other intelligent creatures in the universe, and this signal happens to point to the earth, then it is likely to be received by FAST's huge antenna array.
The giant spherical antenna with a diameter of 500 meters will provide an extremely solid hardware foundation for FAST to find extraterrestrial civilization. Not surprisingly, with the absolute advantage of sensitivity and antenna aperture, fast? 500-meter spherical radio telescope (FAST)? There will be a great grasp and occupy a favorable position in the search for extraterrestrial civilization. That is to say, the signal of extraterrestrial civilization that can be confirmed is very likely to be discovered first by FAST.
The comprehensive performance of Sky Eye is about 0/0 times stronger than that of Arecibo telescope, so it immediately attracted the attention of the whole world when it came out. Its working principle is somewhat similar to that of an optical telescope, and it conducts scientific research by receiving electromagnetic wave signals in the universe. But the difference is that after adjusting the radio telescope, it can receive radio signals with different wavelengths, mainly pulsar signals.
Foreign media also commented on the 500-meter spherical radio telescope (FAST). They believe that with the world's largest telescope, China will probably become the first country in the world to discover aliens.