Dark Slope Streaks

Some articles on dark slope streaks, dark, slopes, streaks:

Arcadia Quadrangle - Dark Slope Streaks
... Many places on Mars show dark streaks on steep slopes like crater walls ... It seems that the youngest streaks are dark then they become lighter with age ... Several ideas have been advanced to explain the streaks ...

Famous quotes containing the words streaks and/or dark:

    The grey-eyed morn smiles on the frowning night,
    Checkering the eastern clouds with streaks of light.
    William Shakespeare (1564–1616)

    I am absurdly fearful about this voyage. Various little omens have combined to give me a dark feeling.... Perhaps we shall live to laugh at these. But in case of mishap I should perish with my husband and child, perhaps to be transferred to some happier state.
    Margaret Fuller (1810–1850)