History was made today - as Sussex army major, Tim Peake, became the first official British astronaut - to walk in space where he fixed a power unit, outside the International Space Station. His space mission was expected to last six and a half hours but was terminated early because of problems with the helmet of his fellow spacewalker, Tim Kopra. But for schoolchildren across the South East the spacewalk provided a 'live' science lesson that was, out of this world. Wellesley House School at Broadstairs in Kent was one school where pupils were watching with great interest. Andrea Thomas has been speaking to some of them, along with teacher Kerry Sabin-Dawson.