Nanosensors in space
NASA recently tested the first nanotechnology-based electronic device to fly in space.

Engineers at NASA recently demonstrated that a nanotechnology-based electronic sensor can be used to monitor trace gases inside a spaceship.
The technology used to build the device could lead to smaller, more capable environmental monitors and smoke detectors in future crew habitats.
NASA's Nano ChemSensor Unit hitched a ride to Earth orbit on March 9, 2007, as a secondary payload experiment on the US Naval Academy's MidSTAR-1 satellite. The sensor test itself was conducted on May 24.
‘We demonstrated that nanosensors can survive in space conditions and the extreme vibrations and gravity change that occur during launch,’ said Jing Li, a scientist at NASA's Ames Research Center in California's Silicon Valley and the principal investigator for the test.
On long missions in space, harmful chemical contaminants may build up gradually in the crew's air supply. Nanosensors will be able to detect minute amounts of these contaminants and alert the crew that there may be a problem.
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