I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
The Mullard Radio Astronomy Observatory (MRAO) is located near Cambridge, UK and is home to a number of the largest and most advanced aperture synthesis radio telescopes in the world, including the One-Mile Telescope, 5-km Ryle Telescope, and the Arcminute Microkelvin Imager.
It was founded by the University of Cambridge and is part of the Cambridge University, Cavendish Laboratories, Astrophysics Department.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 02/08/2023. It remains the responsibility of any pilot to check for any changes before flying at the same location.