What Food Should Astronauts Eat On The Way To Mars?
August 14, 2013
Six researchers have spent months living on a volcano in Hawaii — a lava field that looks a lot like Mars. In fact, they were there to figure out what astronauts could eat on a long voyage to the red planet.
PBS NewsHour co-anchor Gwen Ifill joins All Things Considered from the Democratic National Convention in Philadelphia, to discuss her 2009 book The Breakthrough. Ifill is re-examining the book's conclusions about black political leadership as President Obama prepares to leave office.
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