But the long stay has also been lonely. "The hardest part is being isolated from people on the ground who are important to you," he said.
The space veteran says he has witnessed some of the most amazing scenes of Earth during his mission, like spotting the northern lights, passing over the Bahamas and watching huge storms like Hurricane Patricia.
00:05 Thunderous applause, tears as the ‘greatest show on Earth’ takes a final bow21
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15:54 NASA showed off an image of what Earth looked like in 196930
08:29 Majka takes yellow jersey after winning stage 2 in California15