Tag: NASA

  • Photo of the Day

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    A composite of several Cassini images shows Titan’s varied surface, including possibly a remnant of an old impact basin (large circular feature near the center of Titan’s disk). Mountain ranges to the southeast of the circular feature, and the dark linear feature to the northwest of the circular impact scar may be evidence of past…

  • Mars had oxygen-rich atmosphere

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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…

  • Opportunity finds hint of life on Mars

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    CAPE CANAVERAL, Florida – Reuters A Martian rock analyzed by NASA’s rover Opportunity contains clays formed in non-acidic water, an environment potentially suitable for the chemistry of ancient life to brew. The solar-powered Opportunity landed on Mars in January 2004 for what was expected to be a 90-day mission to look for signs there was…

  • NASA Flights Target How Pollution, Storms And Climate Mix

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    More than 250 scientists, engineers, and flight personnel are participating in the Studies of Emissions, Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys (SEAC4RS) campaign. The project is sponsored by the Earth Science Division in the Science Mission Directorate at NASA Headquarters in Washington. Brian Toon of the Department of Atmospheric and Oceanic Sciences…