Meet the teenagers learning how to build rockets

Teenagers are often given advice to aim high or shoot for the stars.
These school pupils have been taking that advice literally, by taking part in the Northern Ireland schools rocketry competition.
It was held on a World War Two airfield on the shores of Lough Neagh.
Part of the challenge was to ensure that what went up - to a height of more than 800ft - also came down more or less one piece.