LOS ANGELES (AP) — NASA has not heard from the stuck Mars rover Spirit in a little over a year now.
Despite the odds, the space agency says it will make a last-ditch effort to listen for the rover.
Engineers expected Spirit to wake up from hibernation once there was maximum sunlight at the place where it's been stuck. But that was not the case.
NASA says the fact that Spirit hasn't responded that there's something more seriously wrong with the rover than just a power issue.
Spirit and its twin Opportunity landed on Mars in 2004 and have outlived their planned, three-month mission.
Opportunity can still drive and is headed for a crater.
Scientists say the loss of communication comes at the worst possible time because Spirit was doing valuable science while immobile.
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