Tour of Mullard Radio Astronomy Observatory
Friday 12th September 2025 from 10:00am to 12:00pm
Mullard Radio Astronomy Observatory
Cambridge Road, Harlton, Cambridgeshire, CB23 1EX, East of England
Join Open Cambridge for a tour of the Mullard Radio Astronomy Observatory at Lord’s Bridge near Barton. The tour will start with a 15 minute introduction at the Station House followed by a trip around the site with a stop at each location.
On the tour, you’ll be taken around the site and learn more about the radio telescopes on the site including the One-Mile Telescope, 5-km Ryle Telescope, and the Arcminute Microkelvin Imager. You’ll also see inside some of the control rooms and learn about the unique history of the site and some of the important discoveries made here.
Please note that this has already taken place on 12/09/2025
Event booking
Event darkness
The below chart shows if and when the skies will be at their darkest during this event. Moonlight is shown in light yellow and the Sun's twilight in light blue. Midnight on the date shown is shown as a white line with sunset to the left and sunrise the next morning to the right. A black background with stars shows the best times for stargazing.
Fri 12th Sep
Local light pollution
Mullard Radio Astronomy Observatory is estimated to have light pollution levels similar to a semi-rural location based on the latest data from the VIIRS satellite.
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Urban
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Suburban
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Semi-rural
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Rural
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Dark site
The above demonstrates the estimated effect of light pollution - graphics created using Stellarium.