AllNews'Nina Lanza' - 1 News Result(s)Manganese Oxide Indicates Mars Was Once Earth-LikeWorld News | Indo-Asian News Service | Tuesday June 28, 2016 NASA's Curiosity rover has observed high levels of manganese oxides in Martian rocks which indicates that higher levels of atmospheric oxygen once existed on Red Planet. www.ndtv.com'Nina Lanza' - 1 News Result(s)Manganese Oxide Indicates Mars Was Once Earth-LikeWorld News | Indo-Asian News Service | Tuesday June 28, 2016 NASA's Curiosity rover has observed high levels of manganese oxides in Martian rocks which indicates that higher levels of atmospheric oxygen once existed on Red Planet. www.ndtv.comYour search did not match any documentsA few suggestionsMake sure all words are spelled correctlyTry different keywordsTry more general keywordsCheck the NDTV Archives:https://archives.ndtv.com