Dark Material

Some articles on materials, dark, material, dark material:

Volcanism On Io - Composition
... from Ra Patera revealed differently colored materials, all associated with liquid sulfur, at different distances from the vent dark albedo material close to the vent at 525 K (252 °C 485 °F), red ... lava flows, whether they were composed of silicate or sulfurous materials ... is detected, and from spectral measurements of Io's dark material ...
Iapetus (moon) - Physical Characteristics - Two-tone Coloration
... The leading hemisphere and sides are dark (albedo 0.03–0.05) with a slight reddish-brown coloring, while most of the trailing hemisphere and poles are bright (albedo 0.5–0.6, almost as bright as ... The dark region is named Cassini Regio, and the bright region is divided into Roncevaux Terra north of the equator, and Saragossa Terra south of it ... The original dark material is believed to have come from outside Iapetus, but now it consists principally of lag from the sublimation of ice from the warmer areas of Iapetus's surface ...

Famous quotes containing the words material and/or dark:

    Living in cities is an art, and we need the vocabulary of art, of style, to describe the peculiar relationship between man and material that exists in the continual creative play of urban living. The city as we imagine it, then, soft city of illusion, myth, aspiration, and nightmare, is as real, maybe more real, than the hard city one can locate on maps in statistics, in monographs on urban sociology and demography and architecture.
    Jonathan Raban (b. 1942)

    She walks in Beauty, like the night
    Of cloudless climes and starry skies;
    And all that’s best of dark and bright
    Meet in her aspect and her eyes:
    Thus mellowed to that tender light
    Which Heaven to gaudy day denies.
    George Gordon Noel Byron (1788–1824)