Thirty years of the Square Kilometre Array: here’s what the world’s largest radio telescope project has achieved so far
Summary
The article reviews the development of the Square Kilometre Array (SKA) and its precursor instruments, detailing how MeerKAT, HERA, MWA, and ASKAP have advanced technology and science ahead of the SKA’s full operation. It highlights the multi-site strategy, the importance of pathfinders, and emerging challenges such as satellite interference and the need for regulatory safeguards to protect astronomical observations.