Endless scientific frontiers have promoted the establishment of the National Science Foundation of the United States.

The National Science Foundation of the United States (USA) is an independent federal institution in the United States, which is equivalent to the National Natural Science Foundation of China and was established in 1950. Its task is to promote the development of American science by funding basic scientific research projects, improving science education, developing scientific information and strengthening international scientific cooperation.

The National Science Foundation of the United States consists of the National Science Council, 1 Chairman, 1 Vice Chairman and five assistant chairmen. Members of the National Science Council are appointed by the President of the United States. Its main task is to decide the policies of the National Science Foundation.

At 9: 00 EST on April 19 (Beijing time 2 10), the introduction of the event horizon telescope on the official website homepage of the National Science Foundation of the United States wrote: "A historic announcement about black holes."

The National Science Council has established various committees according to disciplines, and some special committees according to the needs of studying a special problem. After 1968, the National Science Foundation of the United States submitted a report on the development of American science and its disciplines to the President (and then to Congress) through the National Science Council every year.

The projects of the National Science Foundation of the United States are divided into five categories: basic research projects, science education projects, applied research projects, science policy projects and international cooperation projects. It carries out its functions through these plans.

At 9: 00 EST on April 19 (Beijing time 2 10), simultaneous press conferences will be held in Washington, DC, China, Shanghai, China and Taipei, China, Santiago, Chile, Brussels, Denmark and Tokyo, Japan to release English, Chinese, Spanish, Danish and Japanese versions of event horizon.

Some important guests will attend the press conference held at the National Journalists Association in Washington, USA, including Shepard Dulleman, director of the event horizon telescope project, a senior astronomer at the Harvard-Smithsonian Center for Astrophysics, and Frans Cordova, chairman of the National Science Foundation, an important sponsor of the project. In the introduction of official website's homepage, the National Science Foundation wrote: "A historic announcement about black holes."