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March 27, 2004

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A view of the Earth from the surface of Mars.

Not only are earth-views aesthetically interesting, while offering a chance to test remote sensing scenarios, the rovers more practically depend on a daily sky view to navigate. The rover design does not possess any intrinsic way of knowing its orientation as north or south for instance, because Mars doesn't offer a strong magnetic field that might typically give a compass reading. So scientists point the rover's mobile panoramic camera to do a sun sighting daily, which also provides today's orientation.

Posted by Ghost of a flea at March 27, 2004 07:55 AM