12/17: NASA orders spacewalks to fix Space Station; Lotto players come out in droves for Mega Millions jackpot

      |NASA says it will take a series of spacewalks to fix a broken cooling line that shut down half of the International Space Station's cooling system last week; and, with the latest Mega Millions jackpot soaring to over $600 million, Americans everywhere are catching lotto fever. Paula Otto, the lead director for Mega Millions, says that just a few alterations to the format of the game have increased the likelihood of massive jackpots.

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