Mars is home to perhaps the greatest mystery of the Solar System: the so-called Martian dichotomy, which has baffled scientists since it was discovered in the 1970s. The southern ...

Mars is home to perhaps the greatest mystery of the Solar System: the so-called Martian dichotomy, which has baffled scientists since it was discovered in the 1970s. The southern ...

NPR's Scott Simon reflects on the wildfires in Los Angeles, and the words of writers who were drawn to the city.

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