The recent decision by the Council of the Square Kilometre Array (SKA) radio astronomy Observatory (SKAO) to formally start construction on Thursday (July 1) is the result of more than seven years of design and engineering work. These endeavours were consolidated in two key documents, published last year, namely the Observatory Construction Proposal and the Observatory Establishment and Delivery Plan. This essential work was carried out by more than 500 experts from 20 countries, including countries that have not yet formally joined the SKAO. The antennas, computing systems, networks, software and infrastructure necessary to make possible the two SKA arrays (one each in South Africa and Australia) were designed and developed by eleven international consortia representing more than 100 institutions. These institutions included companies, research laboratories and universities.
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