国外科技动态１９２８年，供职于著名的贝尔电话实验室的美国无线电工程师卡尔·央斯基负责对美国电话电报公司跨洋无线通信中出现的干扰信号进行研究。在研究过程中，央斯基发现，有一种干扰信号不是来自太阳系内，而是来自银河系的中心。１９３３年５月５日，《纽约时报》头 Foreign Scientific and Technological Trends In 1928, Karl Jansky, a U.S. radio engineer who worked for the famous Bell Telephone Laboratory, was responsible for studying the interference signals that occurred in the trans-oceanic wireless communications of the United States Telephone and Telegraph Company. In the course of his research, Munzki found that one interference signal came not from the solar system but from the center of the Milky Way. May 5, 1933, The New York Times head