SCOTT SIMON, host: Six men in Moscow are readjusting to life on Earth today after enduring a long simulated mission to Mars. They spent 520 days locked inside a fake spaceship. The hatch was opened yesterday.
NPR's Nell Greenfieldboyce reports that this pretend trip involved real psychological challenges that may still persist.
SCOTT SIMON, host: While Herman Cain was wrapping up his week in Washington D.C., five of his fellow Republican presidential contenders were in Iowa last night for the GOP's Ronald Reagan dinner. Michele Bachmann, Newt Gingrich, Ron Paul, Rick Perry and Rick Santorum spoke at the annual fundraiser, but Mr. Cain and Mitt Romney did not attend the Iowa event. In fact, compared to the current crop of Republican presidential candidates, Cain and Romney have spent little time in Iowa.