Second computer glitch shuts down NASA Mars rover

NASA's Mars rover Curiosity is pictured in this handout self-portraitBy Irene Klotz CAPE CANAVERAL, Fla., March 18 – The Mars rover Curiosity has had a second computer glitch, extending an unplanned work break for the NASA robot that discovered the first life-friendly chemistry beyond Earth, scientists said on Monday. Engineers had hoped to resume Curiosity science operations on Monday following a problem with the rover's main computer two weeks ago. But a second computer problem surfaced on Sunday night as the rover was attempting to radio data files back to Earth, said lead scientist John Grotzinger of the California Institute of Technology. …