Within the next decade, a pair of giant radio telescopes in South Africa and Australia will be able to generate about 700 petabytes of data each year, the equivalent of about 149 million DVDs, a stack nearly 180 kilometres high. The telescopes are part of the Square Kilometre Array Observatory (SKAO), which will include more than 100,000 Christmas-tree-like wire antennas in Australia and some 200 ...