All Things Considered

The idea of exploiting the natural resources on asteroids has been around for more than a century. But a new company called Planetary Resources has the financial backing of some big names in high tech, and hopes to launch specially-designed prospecting spacecraft within two years.

James Murdoch appeared on Tuesday before the U.K.'s Leveson inquiry, which is examining media practices. He and his father Rupert have to answer questions surrounding the phone-hacking scandal. In particular, the panel is examining the influence the world's most power media tycoon may have wielded through his political ties.

A new study has determined that some automated essay graders can do as good of a job as humans. Melissa Block talks with New York Times education columnist Michael Winerip about the study and the weaknesses of automatic essay readers.

The retrial of baseball great Roger Clemens began in earnest Monday after a week of jury selection. Clemens is charged with lying in 2008 to a congressional committee when he denied ever using steroids or human growth hormone.

He will be judged by a jury of 10 women and 6 men — 12 jurors and 4 alternates — who will decide whether Clemens lied under oath about using the drugs when he testified before a congressional committee investigating the use of performance-enhancing drugs in baseball.