The Royal Observatory, which is part of the National Maritime Museum, hosts this exhibition of startling images of the night sky. Of course, most of them aren’t things you’ll be able to spot while lying on your roof after a few beers – they’re a bit more ambitious, taken with telescopic lenses. A must for stargazers.

Until February 5
National Maritime Museum, Romney Rd, London, SE10 9NF
Tube: Greenwich