In the George A. Romero classic, Night of the Living Dead, a radioactive satellite falls to earth and causes the dead to rise from their graves -- but what if the satellite itself had become a zombie? That's the slightly less frightening reality that has befallen Intelsat's Galaxy 15 communications satellite, which "went rogue" in April of 2010 and has been unresponsive ever since -- even though it has continued to transmit signals. Late last month, however, the satellite finally came back to life, and Intelsat was able to put it into safe mode to prevent it from interfering with other communications satellites. It's apparently even now trying to determine if the satellite could become fully functional again -- although, if you ask us, that just sounds like it's all part of the zombie satellite's plan...