Origin of Water On Earth

The origin of water on Earth, or the reason that there is clearly more water on the Earth than on the other planets of the Solar System, has not been clarified. There are several acknowledged theories as to how the world's oceans were formed over the past 4.6 billion years.

Read more about Origin Of Water On Earth:  Origins, Water in The Development of The Earth, Extraterrestrial Sources, Role of Organisms

Famous quotes containing the words origin of, origin, water and/or earth:

    Someone had literally run to earth
    In an old cellar hole in a byroad
    The origin of all the family there.
    Thence they were sprung, so numerous a tribe
    That now not all the houses left in town
    Made shift to shelter them without the help
    Of here and there a tent in grove and orchard.
    Robert Frost (1874–1963)

    The real, then, is that which, sooner or later, information and reasoning would finally result in, and which is therefore independent of the vagaries of me and you. Thus, the very origin of the conception of reality shows that this conception essentially involves the notion of a COMMUNITY, without definite limits, and capable of a definite increase of knowledge.
    Charles Sanders Peirce (1839–1914)

    At noon, you walk across a river. It is dry, with not this much water: it is just stones and pebbles. But it rains cats and dogs in the mountains, and towards afternoon, the water descends wildly and she ravages all in its path, the madwoman. That is how death comes. Without our expecting it, and we cannot do a thing against it, brothers.
    Jacques Roumain (1907–1945)

    Happy for us, that when we find our constitutions defective and insufficient to secure the happiness of our people, we can assemble with all the coolness of philosophers and set it to rights, while every other nation on earth must have recourse to arms to amend or to restore their constitutions.
    Thomas Jefferson (1743–1826)