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Construction of the world's largest telescope is getting underway today. The Square Kilometre Array will be split between sites in Australia and South Africa. When it is completed in 2028, it will be the most sensitive telescope ever built. Dr Jimi Green is Head of Science Operations for the SKA low telescope. He told Newsday: “It’s being created to address some of the biggest questions in science and astronomy. So essentially, are we alone in the universe? When and how did the first stars and galaxies form? Looking back about 13 billion years in to the past, testing theories of Einstein in ways that we haven't been able to do so yet...and all of those will be through the transformational leap the technology that we're utilising will provide.” (Picture: Shows a 64-dish radio telescope system in Carnarvon, South Africa, which will be integrated into the multi-nation Square Kilometre Array. Credit: Mujahid Safodien / AFP via Getty Images.)