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Astronomy blog
Read our monthly guides to the night sky, and check out the latest news from the Royal Observatory Greenwich astronomy team
London Marathon this Sunday
Cutty Sark will be closed on Sunday 27 April until 2pm due to the London Marathon. All other sites are open to visitors and spectators as normal, but please check road closures before you travel and allow extra time as the area will be busy. Parking at the National Maritime Museum is unavailable all day.