100 years since the first liquid-fuelled rocket, advanced propulsion systems are on the horizon to take us further into space than ever. A century ago, Robert Hutchings Goddard – a physics professor branded ‘Moon Man’ by the public and ridiculed by the press – launched the world’s first liquid-fuelled rocket. On 16 March 1926 it ascended 12.5 metres (41ft) into the air, reached 97 km/... [8927 chars]