Space Science stamps launched by Royal Mail – in pictures

Venus Express launched on 9 November 2005 Photograph: Royal Mail

Cassini-Huygens is a joint mission by Nasa and Esa launched in October 1997 Photograph: Royal Mail

Titan Photograph: Royal Mail

Mars Express was launched on 2 June 2003 Photograph: Royal Mail

Rosetta launched on 2 March 2004. The probe's flyby of the asteroid Lutetia was on 10 July 2010, but its ultimate objective is to set a lander down on the comet 67P/Churyumov-Gerasimenko in November 2014 Photograph: Royal Mail

SOHO is a joint Nasa/Esa mission studying the sun Photograph: Royal Mail

Guardian astronomy blogger Dr Stuart Clark, who wrote the presentation packs that will be issued with the new stamps Photograph: David Parry/PA