A lift tower will be built to the Great Equatorial Telescope, which is currently only accessible via a small spiral staircase. Four new interactive astronomy galleries, a covered courtyard named Astronomers Court to house live science events, and a roof terrace to live stream celestial events will be built, according to the Local Democracy Reporting Service. Work began last month and is due to be completed by spring 2028, with the Peter Harrison Planetarium closed while construction takes place.