A still from the SKA 2025 Year in Review video

The SKA Observatory has put together a video looking back over 2025 and celebrating some of the significant activities and construction milestones that took place on the SKA telescope sites in Australia and South Africa.  While infrastructure work continues, the SKA telescopes are beginning to take shape, with seven dishes assembled on the SKA-Mid site and 15,000 antennas installed on the SKA-Low site in Australia.  Other highlights include 56,000 sheets of steel mesh laid, the first image from four SKA_Low stations released, 400+ km of roads built or upgraded, 109 SKA-Mid dish foundations completed and the first mechanical heartbeat of an SKA-Mid dish, and 800+ staff and contractors employed across the sites, supported by hundreds more globally.  The image above, showing SKA-Low antennas just before sunrise, is a still from the video. (Image credit: SKAO)

We recognise and acknowledge the Indigenous peoples and cultures that have traditionally lived on the lands on which our facilities are located. In Australia, we acknowledge the Wajarri Yamaji as the Traditional Owners and Native Title Holders of Inyarrimanha Ilgari Bundara, the CSIRO Murchison Radio-astronomy Observatory, the site where the SKA-Low telescope is being built.