Tag: Mar

  • Curiosity “Tastes” Martian Air

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    Daniela
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    Alicia Chang, science writer for the AP, relays some interesting information discovered by Curiosity about the Martian atmosphere: The Curiosity rover has tasted Mars’ air: It’s made mostly of carbon dioxide with hints of other gases. There was a small surprise: Viking found nitrogen to be the second most abundant gas in the Martian air,…

  • Mars had oxygen-rich atmosphere

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    Daniela
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    Mars had an oxygen-rich atmosphere four billion years ago – more than a billion years before Earth, according to a study of rock samples. NASA’s Mars Curiosity rover Photo: REUTERS By Nick Collins, and Agencies Rocks collected by Nasa’s Spirit rover from the surface of the Gusev crater were found to contain five times as much nickel as…