Grantham Museum the first Curator and Founder, and 20th century additions included material about Sir Isaac Newton, Edith Smith and Margaret Thatcher. There is also material about the Dambusters Raid. The Museum hosts a variety of exhibitions during the year. The museum is currently managed by the Grantham Community Heritage Association (GCHA). This charity was formed in 2011 to take over the management of the museum from Lincolnshire County Council with a view to reopening the facility for the Queen's Jubilee in June 2012. In 2013, a few months before the death of Margaret Thatcher, the GCHA announced plans to raise funds
Isaac Newton Telescope by Grubb Parsons after the move. INT locations are Herstmonceux Castle (1967–79) then ORM (1984–). The INT was inaugurated by Queen Elizabeth II in 1967. Largest optical telescopes 1967: INT began its new life atop the Canary Island of La Palma, a Spanish mountain island, in 1984, with a new mirror and dome. Large visible-light optical ground telescopes in 1984: Isaac Newton Telescope The Isaac Newton Telescope or INT is a 2.54 m (100 in.) optical telescope run by the Isaac Newton Group of Telescopes at Roque de los Muchachos Observatory on La Palma in the Canary Islands since 1984.