Sentences with phrase «which small craters»

The researchers say this indicates an upper crust made of a mixture of rock and ice — in which small craters could be carved — supported by a more viscous mantle of ice lower down, which would allow the biggest impact basins to relax away with time, like silly putty returning to its original shape.

Not exact matches

But the authors of this new piece think they've come up with the explanation, and that they've gone over this area and they've reconstructed a scenario in which it could have been the case that some sort of small meteor did come to ground and what may help make the determination here, is that they think they've identified what may be a crater after all.

Cerealia Facula, in the center of the crater, consists of bright material covering a 6 - mile - wide (10 - kilometer - wide) pit, within which sits a small dome.

LRO's Lunar Orbiter Laser Altimeter (LOLA), which can determine the height of a small patch of lunar soil to within 10 centimeters, has enabled scientists to compile a detailed topographical map of 5185 lunar craters, all more than 20 kilometers in diameter.

«In addition to the new impact craters and starburst debris patterns, we observed a surprising number of small surface changes which we call splotches,» Speyerer said.

Europa (which is 12 percent smaller than Earth's Moon) appears to have a sparsely cratered shell of water ice that may be only 30 to 50 million years old, and so some resurfacing process must be renewing its icy shell.

The images, which show the cratered and pockmarked surface of the small icy world, were taken by the Cassini probe, which entered into orbit around the planet in 2004.

The research team has not yet found the comet's crater — the microtektites are not densely distributed in the clay layer, which means the comet could have been fairly small, or might have struck far from modern New Jersey.

In contrast, the smaller dark spots (which can appear as gray, brown, or red) may be the remains of low - speed, carbon - rich asteroids that splattered such» deposits» onto Vesta's surface, or they may be the result of higher - speed asteroid that melted and darkened volcanic basaltic crust on crater walls and floors, or on surrounding hills and ridges (NASA DAWN news release).

In addition, there is a smaller crater at Tilted Towers, which despite the predictions of many players were not completely obliterating by the comet.

It makes no difference whether we are face - to - face with one of his large format images, in which he allows the pigments dissolved in epoxy resin to run slowly down the picture carriers in satiated, glistening vertical stripes; or whether we study those works in which small drilled craters disclose many apparently archeological layers of paint, or find ourselves in one of his site - specific, all - over paintings that cover the walls, floors and ceilings, their iridescent stripes of color subduing entire architectures and permanently altering the viewer's perception.