Babbage: The next giant leap for mankind
This week marks the 50th anniversary of the launch of the Apollo 11 moon mission. Is humankind about to return there? And what do the next 50 years of space exploration hold? The task of moderating a platform with over two billion active users is a daunting one. Brent Harris, Facebook’s director of governance, explains his plans. And the science behind the search for the reddest red yet. Kenneth Cukier hosts
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