![]() The SKA-Low telescope receptor array will comprise 131,072 individual antennas configured as an aperture array. The high density core is necessary for experiments such as pulsar surveys, while the long baselines provide the angular resolution required for cosmology. The array configuration will extend to a radius of 100km providing long interferometric baselines from a high density inner core of dishes. SKA-Mid will consist of 133 15-m offset Gregorian dishes and 64 MeerKAT dishes equipped with multiple receivers that span the frequency band 350MHz to 15GHz. ![]() The SKA’s receptor arrays will be co-hosted in South Africa's Karoo region and Western Australia's Murchison region, with science processing facilities in Cape Town and Perth respectively. The scientific themes outlined above are today's problems, but the history of radio astronomy suggests that new challenges arising from new discoveries will quickly arise and will require the SKA’s capabilities to explore thoroughly. The SKA has been conceived as a general purpose observatory that will test fundamental physical laws and transform our current picture of the Universe, with a design lifetime of 50 years. These will include Gamma Ray Burst, supernovae and Fast Radio Bursts but will also allow an "Exploration of the Unknown".
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