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 Laser radar illuminates the way to deep space |
Thursday, 23 February 2012
 Paris, France (ESA) Feb 23, 2012
This car was not snapped with a camera but scanned by a 3D imaging lidar, the laser equivalent of radar. ESA is developing the sensor as a navigation aid for exploring deep space. Lidar stands for 'light detection and ranging', with a pulsed laser beam scanning targets by measuring the time it takes for the light to bounce back. The wavelength of light is so much shorter than that of radi
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