Mars rover Curiosity has found definitive proof that water once ran across the surface of Mars, US space agency NASA announced.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/nasa-rover-finds-old-streambed-mars
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/pioneer-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nasa
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/science-and-technology
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/astronomy
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/california