Welcome to a Cosmos Insights podcast, where we talk to scientists in Australia about the impact of their work.After 31 years of planning, radio telescopes called the Square Kilometre Array (SKA) have finally begun construction. The Australian site in the Murchison region of WA – known as SKA-Low – will eventually comprise over 130,000 Christmas tree-like antennae.Today Cosmos journalist Jacinta Bowler talks to Professor Cathryn Trott, astronomer and Chief Operations Scientist at SKA-Low about her work at SKA-Low and what the array will achieve.Find the science of everything at the Cosmos Magazine website).Subscribe) to Cosmos Magazine (print) or Cosmos Weekly.Watch and listen) to all our Cosmos podcasts.Special 10% discount on Cosmos magazine print subscriptions (1 or 2 year), or 1 year Cosmos Weekly subscriptions for Cosmos Briefing podcast listeners! Use coupon code COSMOSPOD in our shop).