Belying its austere reputation for pure science and the search for fact, the European Space Agency (ESA) is branching out - into fantasy film-making.

ESA has released a six-and-a-half-minute work, complete with a TV star, Oscar-nominated director and dramatic digital effects, that turns the spotlight on its historic mission to explore a comet. Called Ambition, the short film features Irish actor Aiden Gillen - a star in TV’s Game of Thrones - as a mind master in a world where humans have the powers of demi-gods. He oversees an apprentice, Aisling Franciosi, in using mental powers to assemble asteroids and planets, drawing on the pioneering experience of Rosetta to understand how life is formed.