A Feb. 27 short circuit had NASA's Curiosity sitting tight on Mars, but now the little rover is back in action.

The short circuit happened in the middle of a drilling experiment, when the rover was meant to be transferring newly obtained samples into the instruments that could analyze it. Because a short circuit triggered alarms, the rover had to cease operations for several days so mission scientists could run tests.

But now the rover is back on-line, and that sample has found its way to the instruments it was meant for.

"That precious Telegraph Peak sample had been sitting in the arm, so tantalizingly close, for two weeks. We are really excited to get it delivered for analysis," Curiosity Project Scientist Ashwin Vasavada of NASA's Jet Propulsion Laboratory said in a statement.

The team thinks that the short happened in the motor that controls up and down movements in the rover's drill. During the precautionary tests over the past couple of weeks, the scientists only saw the short circuit happen one more time -- and for just one hundredth of a second. Since it didn't happen repeatedly or cause damage to the motor, Curiosity can cautiously continue use of the vital drill. Curiosity relies on both rotary and percussive motions to break into and break up the rocks of Mars, so it's important that NASA keeps an eye on the drill and maintains its function.

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