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Two American astronauts made quick progress during a spacewalk outside the International Space Station on Saturday to replace a broken equipment cooling system, NASA said. The risky outing was called for earlier this week after a cooling valve failed on December 11, leaving NASA no other option but to replace an ammonia pump at the orbiting lab. The problem caused a partial shutdown in the system that regulates equipment temperature at the space station, but did not pose any danger to the six-man crew, NASA said. "They will be replanning that spacewalk," a NASA commentator said, in light of the extra progress made on Saturday.
Liverpool took over at the top of the Premier League table on Saturday, while Manchester City climbed to second place and Manchester United continued their recent revival. With previous leaders Arsenal and Chelsea facing off at the Emirates Stadium on Monday, Liverpool took advantage with a 3-1 win over Cardiff City that took them a point above Arsene Wenger's side. Manchester City followed their lead by winning 4-2 at Fulham to move above Arsenal on goal difference.
Russia’s former richest man Mikhail Khodorkovsky is likely to stay out of the nitty-gritty of Russian politics following his decade-long prison ordeal but could still exercise a degree of moral authority. With the extraordinary military-style transfer from prison in a remote region of northern Russia to Berlin shrouded in secrecy, it is still unclear when Khodorkovsky will return to his homeland or even if he ever plans to go back. While chief executive of the Yukos oil giant that he built up through the shady privatisation deals of the 1990s, Khodorkovsky began to finance opposition to President Vladimir Putin and to boldly criticise his rule. Yet it is highly improbable that Khodorkovsky, in the short term at least, could become a political leader for the Russian opposition which has lost momentum since rocking Putin with mass protests in the winter of 2011-2012.