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| | Martian moon Phobos hip-deep in powder |
 | | New temperature measurements show the surface must be composed largely of finely ground powder at least one meter (three feet) thick, according to scientists studying infrared data from the thermal emission spectrometer instrument on the spacecraft. |
 | | A 10-kilometer-diameter (six-mile) crater called Stickney, which is almost half the size of Phobos itself, shows light and dark streaks trailing down the slopes of the bowl, illustrating that even with a gravity field only about 1/1000th that of the Earth's, debris still tumbles downhill. |
 | | Infrared measurements of Phobos were made on August 7, 19 and 31 from distances ranging between 1,045-1,435 kilometers (648-890 miles), far enough away to capture global views of the Martian moon in a single spectrum. |
| www.jpl.nasa.gov /releases/98/mgsphobos.html (727 words) |
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