A few pictures to put things in perspective: A Hubble mosaic of the Crab Nebula, the remains of a "tremendous" stellar explosion. According to NASA, observers in China and Japan recorded the supernova nearly 1,000 years ago, in 1054.
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Elizabeth Bates and the Search for the Roots of Human Language
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In the 1970s a young psychologist challenged a popular theory of how we
acquire language, launching a fierce debate that continues to this day
7 hours ago
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