GOLETA, Calif., March 25 -- Raytheon's miniature thermal emission spectrometers are playing a key role in NASA's ongoing Mars exploration rover project by examining the mineral composition of the Mars environment. The company said both mini-TES instruments, installed on Spirit and Opportunity, NASA's twin robot geologists, have been operating successfully since the rovers landed on Mars in January. Mini-TES is a compact, high-power sensor that will collect a variety of data on Mars' physical composition and atmosphere, helping scientists to evaluate whether its environment was ever conducive...Read full articleRelated content from Photonics MediaArticlesTerahertz Radiation Boosts Quality Control from Aerospace to PharmaContact-free thickness measurements are increasingly important in industrial process monitoring and quality control. 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