The first, scheduled for Saturday, will add a platform to the Japanese laboratory complex, Kibo, which can be used for experiments that require materials to be exposed to the harsh environment of space.

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For a start it is a familiar setting and, with the advent of the AS-level exams, there is less time than there used to be for settling in to a new environment before the exams begin.

BBC: Pupils' A-level decision time

To counter scepticism over how the oil revenues will be managed, Chad has passed a law under which 80% of the income will be used to finance education, health, environment, water and rural development.

BBC: Africa's mammoth oil project comes of age

Its developers hope it could be used for sensing the wearers' environment and adapting to it by providing heating.

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Mr Grayling added that while such a scheme is contemplated, "road tolls should not be used as an excuse for building new roads, which cause damage to the environment and generate more traffic".

BBC: NEWS | UK | Tolls 'could replace road tax'

"He is a brave man who is not afraid to stand behind the truth even in an environment where it is dangerous, more dangerous than it used to be here, " Havel said.

CNN: Ideas cost peace prize winner freedom