Rescuers then used listening devices and cameras at the scene, but found no signs of life.
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There were no canals, no little green men, no signs of life whatsoever.
This week on Mars, Curiosity took its first sniff of Martian air and took a self-portrait, but it found no signs of life.
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Even if no signs of life are found in the lake, that could inform science's understanding of the limits by which life is bound.
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Jeff Bush was presumed dead after monitoring equipment lowered by engineers detected no signs of life, said Jessica Damico, the Hillsborough County Fire Department spokeswoman.
The cut-off point for resuscitation - when a person is pronounced dead - is when all eight have been checked and there are still no signs of life.
Armed with nothing but a flashlight and finding no signs of life, firefighter David Harmon made one final search of tornado wreckage and made the discovery of a lifetime.
To the outside world, there are no signs of life interrupting this silent night except for the thump of the bass emanating from your little silver Celica ( NYSE:TM).
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Mr Winstanley, who was operating machinery supporting the roof at the time, described the situation as "horrendous" and said they eventually managed to uncover Mr Gibson's face and head but there were no signs of life.
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Though there are no signs yet of such a grave risk to human life, the European Commission is urging the 25 EU member countries to stock up on anti-viral drugs and the World Health Organisation is urging all countries to produce contingency plans.
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Friends have said Dzhokhar seemed to genuinely enjoy his life in America and displayed no signs of holding extremist views.
Doctors at the All India Institute of Medical Sciences said she was showing "signs of gradual recovery" and there was "no danger" to her life.
Cameras lowered into previous holes drilled into the mountain turned up no signs of the miners, and tests showed that oxygen levels in parts of the mine were too low to sustain human life.
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