https://en.wikipedia.org/wiki/Yevpatoria_RT-70_radio_telesco...
https://x.com/ukrpravda_news/status/1962159897325207613
> Ukrainian defense forces took down the 230-foot (70 meters) antenna dish to prevent Russian forces from using it to guide attacks on its territory. The RT-70 radio telescope has been under Russian control since the annexation of the Crimean peninsula in 2014. According to Defense Express, Russians carried out major upgrades to the 5,000 metric ton structure to use it for military communications.
> The telescope reportedly served as an antenna for the GLONASS satellite navigation system, Russia's alternative to the American GPS. Reportedly, the use of the RT-70 radio antenna increased the accuracy of GLONASS by around 30%.