Historic Livermore light bulb briefly turns off

May 21, 2013 7:15:18 PM PDT
After a brief blackout, the longest lasting light bulb on the planet is back on.

A power supply interruption turned off Livermore's Centennial Light Bulb for about six hours Monday night. But by Tuesday morning it was back on thanks to a backup battery.

The historic bulb has been on for 111 years. And it's been lighting up Livermore-Pleasanton fire station number six since 1976.