The Ministry of Defence has announced that Team Stellar has won the RJ Mitchell Trophy, the top prize in its Grand Challenge defence technology competition.

The winning Team Stellar used a ground-crawling robot and two flying ones to unmask a range of likely urban-combat threats."We are proud to crown Team Stellar the winners of MOD's most prestigious competition for battlefield innovators," said Baroness Ann Taylor.

"The Grand Challenge has proven a showcase for the wealth of talent that exists in the UK - not just in large Defence firms, but in universities, schools and even garden sheds across the nation. They have brought fresh, exciting ideas to the Defence table which could have battle-winning applications for our Armed Forces."