Nasa TV coverage of Tim Peake and Tim Kopra spacewalk
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Major Tim Peake and Nasa astronaut Tim Kopra are repairing a faulty component outside the International Space Station (ISS).
It is the first ever spacewalk by an "official" British astronaut.
Michael Foale became the first Briton to carry out a spacewalk in 1995 but flew under a US banner with Nasa.
