About
Slough Museum explores the rich and often surprising history of one of Britain's most misunderstood towns — a place that has been home to pioneering astronomers, boundary-breaking industrialists, and generations of immigrants who shaped its diverse identity. Located in the heart of Slough, Berkshire, the museum tells the story of a town transformed from a modest staging post on the Bath Road into one of the twentieth century's great centres of manufacturing and enterprise.
The museum's most celebrated connection is to Sir William Herschel, the German-born astronomer who lived and worked in Slough between 1786 and his death in 1822. From his home and observatory at Observatory House, Windsor Road, Herschel and his sister Caroline — herself a significant astronomer — made some of the most important observations in the history of science. It was from Slough that Herschel built his famous forty-foot telescope and conducted the systematic surveys of the heavens that led to revolutionary advances in understanding stellar distribution and the structure of the Milky Way. Herschel discovered Uranus in 1781 from Bath before moving to Slough, and it was from Slough that he discovered infrared radiation in 1800 — a landmark moment in the history of physics and astronomy.
Beyond the astronomical heritage, the museum examines Slough's dramatic twentieth-century transformation. The Slough Trading Estate, established in 1920 to convert surplus military vehicles from the First World War, became Europe's largest planned industrial estate and attracted global companies including Mars, Horlicks, ICI, and Citroën. The museum documents the waves of migration — from Ireland and Eastern Europe in the mid-twentieth century, and from South Asia and the Caribbean from the 1950s onwards — that gave Slough its vibrant multicultural character. Local archaeology, social history, and the stories of ordinary Slough residents form the heart of this community-focused museum.
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Plan Your Visit
💡 Visitor Tips
- Slough station is served by Elizabeth line and Great Western Railway trains — the museum is a short walk from the station, making it very accessible from London or Reading.
- Combine a visit with Windsor Castle (4 miles) for a full day of history — Windsor is accessible from Slough by bus or taxi.
- The site of William Herschel's Observatory House on Windsor Road is marked by a blue plaque; ask museum staff for directions to walk past it.
- The museum hosts regular community events including talks, craft sessions, and cultural celebrations — check the website before visiting.
- Town centre cafés and restaurants are within a few minutes' walk from the museum.
- The museum shop sells local history publications including titles on the Herschels and Slough Trading Estate that are hard to find elsewhere.
- Free parking is available at town centre car parks within 5 minutes' walk.
- School groups should book in advance; the museum offers tailored education sessions linked to the National Curriculum.
Highlights
William Herschel — Astronomer of Slough
The museum's most celebrated exhibit celebrates Sir William Herschel, who lived at Observatory House, Windsor Road, Slough from 1786 until his death in 1822.
With his sister Caroline, Herschel transformed astronomy through methodical sky surveys and construction of ever-larger telescopes. His forty-foot telescope at Slough was the largest in the world for over fifty years.
From Slough, Herschel discovered infrared radiation in 1800 by placing a thermometer beyond the red end of a sunbeam's spectrum — one of the most significant discoveries in the history of physics. Artefacts, replicas, and archival material illuminate his life and scientific legacy.
Caroline Herschel — Pioneer Astronomer
The museum gives dedicated attention to Caroline Herschel (1750-1848), William's sister and scientific collaborator, who was in her own right one of the most accomplished astronomers of the eighteenth century.
Working alongside her brother at Slough, Caroline discovered eight comets and catalogued thousands of nebulae and star clusters. She was the first woman to be paid for scientific work in Britain and the first to receive the Gold Medal of the Royal Astronomical Society.
The display honours her achievement in an era when women's contributions to science were routinely minimised.
The Slough Trading Estate Story
In 1920, the Slough Trading Company purchased 600 acres of land used to repair military vehicles after the First World War and transformed it into Europe's largest planned industrial estate. The Trading Estate attracted multinational companies including Mars (whose Slough factory produced the UK's beloved chocolate bars), Horlicks, ICI, and Citroën's British assembly plant.
The museum documents this remarkable transformation of the landscape and its effect on Slough's economy and workforce, drawing on photographs, oral histories, and industrial artefacts from the estate's century of operation.
Betjeman's Slough — Town and Literature
In 1937, poet John Betjeman published his notorious poem 'Slough', opening with the line 'Come friendly bombs and fall on Slough' — a satirical assault on the supposed ugliness of inter-war ribbon development and industrial expansion. The museum contextualises Betjeman's poem within the history of the town, exploring how it has shaped Slough's public image for decades while arguing compellingly that the real Slough — vibrant, diverse, and historically significant — has always been far more interesting than any literary caricature.
Collections
The Slough Museum holds collections covering archaeology, social history, science, and industry relating to the Slough area and the broader Thames Valley. The astronomy collection associated with William and Caroline Herschel includes documentary material, telescope components, and scientific instruments illustrating their work at Observatory House.
The industrial collection documents the Slough Trading Estate through photographs, oral recordings, product samples, and company records spanning a century of manufacturing.
The social history collection encompasses domestic objects, clothing, documents, and personal effects donated by Slough residents from the mid-nineteenth century to the present, with particular strength in material relating to the town's diverse migrant communities. The museum also holds a significant photographic archive of several thousand images documenting town life across all periods.
Slough Through Time
The main permanent gallery tracing the history of Slough from prehistoric settlement through the coaching era, Victorian industrialisation, and twentieth-century transformation to the present-day multicultural town.
Herschel's Universe
Dedicated display celebrating William and Caroline Herschel's astronomical work at Slough, with replicas, archival material, and interactive elements exploring their discoveries.
Current Exhibitions
No current exhibitions. Please check the museum website for updates.