Study finds obstacles with social media data

Seas of social media posts uncovering the opinions, habits and purchases of billions of people would seem to be a fantasy come true for data researchers, social scientists and businesses. However, finding valuable insights ...

Uber now valued at $40 bn

Popular but controversial US ride-sharing startup Uber is now valued at $40 billion, it said Thursday, twice what it was worth six months ago, after raising a fresh $1.2 billion in funding.

Finding infant earths and potential life just got easier

Among the billions and billions of stars in the sky, where should astronomers look for infant Earths where life might develop? New research from Cornell University's Institute for Pale Blue Dots shows where - and when - infant ...

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