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|Spirit's MI finds hollow spheres and tubes|
The Microscopic Imager (MI) has been working in the past few days and has returned images (resolution: 30micons/pixel) depicted sand-sized particle and hollow spheres and tubes. John Grotzinger, an MIT geologist, said the tubes and spheres closely resemble similar structures in the southwestern deserts of the US. "There are little tubes that build up by capillary action," he told New Scientist, when salty water evaporates from the nearly dry soil. It is too early to tell for sure if these structures are actually made by water or other forces, but Grotzinger says that the rovers other capabilities should be helpful in say what caused the hollow spheres and tubes.
(More info: New Scientist)
- posted by Jim @ 9:29 EST