Aging NASA Mars rover Opportunity makes new water discoveries - Indian Express

AFP : Washington, Sat Jun 08 2013, 09:43 hrs This image provided by NASA shows a rock that the Mars rover Opportunity recently examined. (AP/NASA) Scientists today called NASA's Opportunity rover gimpy and arthritic but hailed its new discoveries about early water on Mars made 10 years after it was launched toward the Red Planet. The unmanned solar-powered vehicle has just analysed what may be its oldest rock ever, known as Esperance 6. It contains evidence that potentially life-supporting water once flowed in abundance, leaving clay minerals behind. "This is powerful evidence that water interacted with this rock and changed its chemistry, changed its mineralogy in a dramatic way," said principal investigator Steve Squyres of Cornell University. He described the research as "some of the most important" of the decade-long mission because it showcases a very different chemistry than most of the previous discoveries about water on Mars, which is now quite dry. Scientists believe that a lot of water once flowed through these rocks through some sort of fracture, leaving an unusually high concentration of clay. The analysis reveals traces of a likely drinkable type of water that dates to the first billion years of Martian history, when clay rocks were forming under a more neutral pH, before conditions became more harsh and water more acidic, Squyres said. The rover's rock abrasion tool, alpha particle X-ray spectrometer and microscopic imager provided the details to Earth-based scientists, who can learn about the Red Planet's history without bringing its rocks to Earth. Opportunity and its twin rover Spirit launched in 2003 and landed in January 2004 for what was initially meant to be a three-month exploration. Both discovered evidence of wet environments on ancient Mars. ALSO READ NASA's veteran Mars rover driving to new spot Future war agent: US Army develops realistic robot bird Earthquake acoustics can predict massive tsunamis Huawei smartphones: Where Hollywood meets Silicon Valley Please read our terms of use before posting comments TERMS OF USE: The views, opinions and comments posted are your, and are not endorsed by this website. You shall be solely responsible for the comment posted here. The website reserves the right to delete, reject, or otherwise remove any views, opinions and comments posted or part thereof. You shall ensure that the comment is not inflammatory, abusive, derogatory, defamatory &/or obscene, or contain pornographic matter and/or does not constitute hate mail, or violate privacy of any person (s) or breach confidentiality or otherwise is illegal, immoral or contrary to public policy. Nor should it contain anything infringing copyright &/or intellectual property rights of any person(s). via Science - Google News http://news.google.com/news/url?sa=t&fd=R&usg=AFQjCNE3aeAk1Ntg7wGUPeR020TpogmQ7Q&url=http://www.indianexpress.com/news/aging-nasa-mars-rover-opportunity-makes-new-water-discoveries/1126643/

Put the internet to work for you. via Personal Recipe 2954071