Engineers upgraded Curiosity's flight software over the weekend, switching the rover's main and backup computers from landing mode to surface mode. The four-day overhaul temporarily halted Curiosity's science and instrument-checkout work, which had begun almost immediately after the rover touched down inside Mars' Gale Crater on the night of Aug. 5.
But those activities can resume later today, on the rover's ninth full Martian day — or Sol 9, in mission lingo — because Curiosity's brain surgery went well, researchers said.
"It came off pretty much without a hitch," Curiosity mission systems manager Mike Watkins, of NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif., told reporters today. "All four days went as planned, so we're now 'go' to continue our checkout activities."
As part of the checkout process, Curiosity's handlers hope to turn the rover's wheels for the first time in the next week or so, Watkins added. [Gallery: Curiosity's 1st Photos of Mars]