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Olympus Mons the highest volcano in our solar system.

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Olympus Mons on Mars.
Olympus Mons on Mars, the highest Volcano in our Solar System.

Close Examination of Bedrock Reveals More Clues.

NASA's Opportunity rover is continuing to examine the exposed bedrock at the edge of the crater. The first images showed that the rock has parallel layers that could be sediments created by standing water, but closer inspection shows that the lines converge and diverge at low angles. This gives clues that something moving probably created these rocks, like volcanic flow or a river. Both rovers will continue searching their landing sites and nearby environment for evidence of past water on Mars - something that might have supported life at one time.

Cities on Fertile Land Affect Climate.

New research from NASA shows that cities in the United States have been built on the most fertile soils of the nation - cities account for just 3% of its land area, but food grown there could out produce the 29% of the US which is currently used for agriculture. The researchers used data two NASA satellites to track plant growth and the locations of urban centres. They created a computer model for a potential pre-urban US landscape which they used to calculate how much the country's vegetation growth is diminished because of cities.

Olympus Mons highest Volcano in our Solar System.

View from overhead of the complex caldera (summit crater) at the summit of Olympus Mons on Mars, the highest Volcano in our Solar System.

Olympus Mons has an average elevation of 22 km and the caldera has a depth of about 3 km. This is the first high-resolution colour image of the complete caldera of Olympus Mons.

The image was taken from a height of 273 km during orbit 37 by the High Resolution Stereo Camera (HRSC) on ESA’s Mars Express on 21 January 2004. The view is centred at 18.3ºN and 227ºE. The image is about 102 km across with a resolution of 12 m per pixel. South is at the top.

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