The rise and fall of a continent-spanning cliff may help explain a mysterious 1-billion-year gap in Earth’s geologic history, a new study suggests.
The rise and fall of a continent-spanning cliff may help explain a mysterious 1-billion-year gap in Earth’s geologic history, a new study suggests.
Here’s a look at the Nobel Prizes for science 
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An experimental drug kills fat cells, rather than shrinking them 
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How the Grand Canyon could have lost 1 billion years of geologic history 
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