back to article New EXPLICIT pics support notion of moist, welcoming past for Mars

The Martian nuclear truck Curiosity has found further evidence that water once flowed freely on the Red Planet's surface. Martian rocks compared with ones on Earth Boffins' initial theory that pebbly beaches on Mars indicate ancient streambeds has been borne out by detailed analysis of the pebble-containing slabs spotted by …

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  1. Anonymous Coward
    Anonymous Coward

    Not all fluids are water

    or even liquid, so just because that how we do it back home doesn't mean that is what happens aboard.

    Rounded pebbles are due to mechanical rather than chemical interaction with their environment, again it doesn't have to be liquid water moving.

  2. equality4xxxy

    Liquid Oxygen

    Is it at all possible that liquid oxygen was present on mars? We think that mars had an atmosphere at one time and that it was due to the core being shut down perhaps by a core jolting asteroid that it lost the atmosphere.

    If we suppose that it's core was extremely active and that that its volcanic activity was even more abundant then earth's, which created most of our oxygen, then perhaps the surface pressure exceeded 137.9 kPA and it was liquid oxygen that dominated the the Martian surface and not water. This could also account for the pebbles.

    Has anyone ever explored this hypothesis?

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