A stamp marking the development of the astronomical telescope as an achievement of the millennium, and name-checking Isaac Newton as a pioneer of the science, carried a very simple and yet absolutely breathtaking image.

It’s a photograph taken by the Hubble Space Telescope, presenting false-colour imagery of the gas giant Saturn, the most visibly dramatic planet in our solar system, against the backness of space.

The planet’s mysterious and fantastically complicated ring system, first observed by Galileo in 1610, is made up of ice, rock debris and dust, with the darker Encke gap caused by the presence of the tiny moon Pan between the inner and outer elements.

Design: photograph.

Printing: gravure by Questa.