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| This artist's conception depicts the rover Curiosity, of NASA's Mars Science Laboratory mission, as it uses its Chemistry and Camera (ChemCam) instrument to investigate the composition of a rock surface on Mars is pictured in this NASA publicity photograph released to Reuters November 23, 2011. The spacecraft is due to be launched from the Cape Canaveral Air Force Station in Florida November 26. ChemCam fires laser pulses at a target and views the resulting spark with a telescope and spectrometers to identify chemical elements. The laser is actually in an invisible infrared wavelength, but is shown here as visible red light for purposes of illustration. [Photo/Agencies] |
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