BBC: Science minister David Willetts is to announce a new UK centre for monitoring the Earth from space. The Earth observation hub will focus on acquiring environmental data, such as information on deforestation and the impact of climate change. The hub will be based at the International Space Innovation Centre (ISIC) in Harwell in Oxfordshire, which will open in April 2011. The aim is to bring together UK expertise in Earth observation. The hub will also be used as a …