The project to build one of the most sensitive radio telescopes in the world could exceed $ 2 billion. At the beginning of the project, not long ago, it was approx. as $ 1.9 billion will be spent on this radio telescope, but many believe the project will exceed $ 2 billion, including researchers who believe that. There is nothing official and the countries involved are trying not to exceed the established $ 1.9 billion. Especially for the fact that each country involved in the project gave a certain amount of money for the construction of this radio telescope, large sums. 

For example, the Swiss government, which approved the country to become a full member of the Square Kilometer Array Observatory, contributed more than $ 30 million to the project, which was approved on December 17, 2021. According to official data from the team of the project, thousands of dishes will make up the Square Kilometer Array together. The vessels are to be built in Australia and South Africa, while the headquarters are already at Jodrell Bank in the UK. 

Fourteen countries are part of the national observatory, including France, Germany, Italy, the Netherlands, Portugal, Spain, Sweden, Switzerland and the United Kingdom. National members from outside Europe are Australia, Canada, China, India and South Africa. The project of the fourteen countries is to cover a distance of at least 3,000 kilometers (1,900 miles) from a concentrated central core. SKA will be built in the southern hemisphere, with cores will be in South Africa and Australia, from there Milky Way is very well observed. 

The plans for this project are not so simple, especially since antennas have to be placed at a distance of several thousand km. compared to SKA. SKA will then combine the signals received from all antennas to simulate a single giant radio telescope capable of extremely high sensitivity and angular resolution. Thus SKA will receive all the information from a lot of antennas located within a radius of thousands of km. Also, some of the SKA sub-matrices will have a very large field of view called FOV, so it will monitor several portions of the sky at the same time.

As a result, the speed of the SKA probe will increase dramatically, allowing multiple users to simultaneously observe different parts of our galaxy in images, which would help, for example, monitor multiple pulsars at once. The combination of a very high FOV with a high sensitivity means that SKA will be able to perform extremely large surveys of the sky, surveys that no telescope has been able to do so far. 

Article by: Andacs Robert Eugen, on 17 January 2022, at 09:07 am Los Angeles time

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