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New NASA lander to help scientists study how Mars formed

This full-resolution self-portrait courtesy of NASA shows the deck of the Curiosity rover from the rover's Navigation camera taken on August 7, 2012. REUTERS/NASA/JPL-Caltech/Handout

This full-resolution self-portrait courtesy of NASA shows the deck of the Curiosity rover from the rover's Navigation camera taken on August 7, 2012. REUTERS/NASA/JPL-Caltech/Handout

This full-resolution self-portrait courtesy of NASA shows the deck of the Curiosity rover from the rover's Navigation camera taken on August 7, 2012. REUTERS/NASA/JPL-Caltech/Handout
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This mosaic image with a close-up inset, taken prior to the test, shows the rock chosen as the first target for NASA's Curiosity rover to zap with its Chemistry and Camera (ChemCam) instrument, on Mars in this Nasa handout photo. ChemCam fired its laser at the fist-sized rock, called "Coronation" (previously “N165”), with the purpose of analyzing the glowing, ionized gas, called plasma, that the laser excites. The test took place on August 19, 2012. REUTERS/NASA/JPL-Caltech/MSSS/LANL/Handout

This mosaic image with a close-up inset, taken prior to the test, shows the rock chosen as the first target for NASA's Curiosity rover to zap with its Chemistry and Camera (ChemCam) instrument, on Mars in this Nasa handout photo. ChemCam fired its...more

This mosaic image with a close-up inset, taken prior to the test, shows the rock chosen as the first target for NASA's Curiosity rover to zap with its Chemistry and Camera (ChemCam) instrument, on Mars in this Nasa handout photo. ChemCam fired its laser at the fist-sized rock, called "Coronation" (previously “N165”), with the purpose of analyzing the glowing, ionized gas, called plasma, that the laser excites. The test took place on August 19, 2012. REUTERS/NASA/JPL-Caltech/MSSS/LANL/Handout
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This composite image, with magnified insets, depicts the first laser test by the Chemistry and Camera, or ChemCam, instrument aboard NASA's Curiosity Mars rover on Mars in this Nasa handout photo. The composite incorporates a Navigation Camera image taken prior to the test, with insets taken by the camera in ChemCam. The circular insert highlights the rock before the laser test. The square inset is further magnified and processed to show the difference between images taken before and after the laser interrogation of the rock. The test took place on August 19, 2012. REUTERS/NASA/JPL-Caltech/MSSS/LANL/Handout

This composite image, with magnified insets, depicts the first laser test by the Chemistry and Camera, or ChemCam, instrument aboard NASA's Curiosity Mars rover on Mars in this Nasa handout photo. The composite incorporates a Navigation Camera image...more

This composite image, with magnified insets, depicts the first laser test by the Chemistry and Camera, or ChemCam, instrument aboard NASA's Curiosity Mars rover on Mars in this Nasa handout photo. The composite incorporates a Navigation Camera image taken prior to the test, with insets taken by the camera in ChemCam. The circular insert highlights the rock before the laser test. The square inset is further magnified and processed to show the difference between images taken before and after the laser interrogation of the rock. The test took place on August 19, 2012. REUTERS/NASA/JPL-Caltech/MSSS/LANL/Handout
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