Thousands of Syrian refugees entered Iraq last week, fleeing the violence between extremist groups and Kurdish militias in northeastern Syria. Weekend Edition Sunday host Rachel Martin speaks with Alan Paul of the charity Save the Children about the flow of refugees entering Iraq.
For the past decade, scientists have been waiting for the Voyager 1 spacecraft to cross into deep space. New research suggests it has left the solar system, but other scientists say it's still inside the sun's sphere of influence. (This piece initially aired Aug. 19, 2013, on Morning Edition.)