Six would-be astronauts will this week begin a 520-day mock space voyage to simulate a mission to Mars. How will they cope with the huge psychological pressures?

即将成为宇航员的六人将于这周开始进行长达520天的模仿火星任务的模拟太空航行。他们将如何应付巨大的心理压力呢？

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Old favourites such as Mock The Week, QI and Springwatch will also remain at the heart of the channel's offer.

ENGADGET: BBC Two HD replaces BBC HD channel on March 26th HD

And last year, Mock The Week's producers were criticised by the BBC Trust over comments Boyle made on the show about swimmer Rebecca Adlington's appearance.

BBC: apologises for Frankie Boyle joke

Another complaint against Mock The Week, relating to a comment Boyle made about the Queen, was not upheld as a breach of editorial standards by the trust.

BBC: apologises for Frankie Boyle joke