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Astronomers Take Over
This brand-new interactive gallery gives curious minds aged 4 to 104 the space to play, learn and explore!
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In conversation with Richard Wright: celebrating 10 years of the Great Hall ceiling
Hear first-hand about the ideas, craftsmanship, and legacy behind this spectacular ceiling installation
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October half term at the Royal Observatory
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ZWO Astronomy Photographer of the Year 2026 winners
Take a look at the winning images in the world's biggest space photography competition
Turner's 'The Battle of Trafalgar': a maligned masterpiece?
J.M.W. Turner's vast naval scene is a treasure of the Royal Museums Greenwich collection, but why was it so controversial when it was unveiled in 1824?
Dog that dived to the bottom of the ocean surfaces at the National Maritime Museum
A toy that journeyed to the very bottom of the ocean has been donated to the National Maritime Museum.
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Washington, John
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1860
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Letter from Captain John Washington regarding the Malta-Alexandria telegraph cable, 1861. (Manuscript)
1861
SPR/5/5
Letter from Captain John Washington, Hydrographer to the Navy, to Spratt, dated 3 May 1861, ordering him to fix the position of the Malta-Alexandria submarine telegraph cable.
Letter from Captain John Washington, 1860. (Manuscript)
1860
SPR/3/3
Correspondence: Captain John Washington, Hydrographer of the Navy, to Spratt, dated 26 May 1860, conveying the Admiralty's approval of the charts of Candia, Crete, see full list in printed catalogue for further details.
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