Tim Peake and his two colleagues have landed back on the remote Kazakh steppe.
"The Soyuz is home. Touchdown confirmed," said Nasa on its live stream.
Recovery teams are one their way to the capsule to help retrieve the astronauts.
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He held several shadow cabinet posts during his parliamentary career, but had not been active in the Commons in recent months.
Campaigners say that the Government should continue to pay for the scheme.
The Scottish Conservatives have criticised ‘another week and another trip’ for Nicola Sturgeon.