... Images from Dawn's framing camera and visible and infrared mapping spectrometer, taken 420 miles (680 kilometers) and 130 miles (210 kilometers) above the surface of the asteroid, show a variety of surface mineral and rock patterns. ...
... signatures of hydrogen, likely in the form of hydroxyl or water bound to minerals in Vestaт??s surface. т??The source of the hydrogen within Vestaт??s surface appears to be hydrated minerals delivered by carbon-rich space rocks that collided with Vesta at ...
... Since the surface structures cast almost no shadows, the surface s reflection properties can be discerned. ... surface, the penumbra effect leads to a shadow both 66 feet (20m) longer and wider than Rosetta s dimensions of approximately 7 ...
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... The fact that we found it appearing at times when the surface brightened strongly suggests that material was being transported from Titan's interior to its surface." ...
... So, the scientists conclude internal geological activity must drive methane to the surface and then into the atmosphere, where it rains down to form Titan's varied surface features. ...
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... They are thought to occur when gas churning below the solar surface plunges even deeper into our star and collides with denser material, sending ripples propagating through the Sun's interior and up to the surface. ...
... The mere fact that we can see the surface at all with just some rudimentary image processing, when the geometry for surface viewing is not the most favorable, says that in a very short time, we can rightfully expect to see sights on Titan that have never ...
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