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NASA hands SpaceX contract for first mission to Jupiter's moon Europa

NASA's (National Aeronautics and Space Administration) Southern California-based Jet Propulsion Laboratory (JPL)  has awarded SpaceX (Space Exploration Technologies Corp.) with the launch services contract for the Earth's first mission to conduct detailed investigations of Europa.

Twitter surpasses revenue targets with ad improvements

Twitter Inc. on Thursday reported higher revenue growth than Wall Street had expected, as the social media platform rolled out ad targeting improvements and said changes by Apple to keep iPhone user data private had hit ad revenue less than anticipated.