Thread: Mars Saturn 4th May
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Old 07-05-2016, 05:25 PM
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John Hothersall
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John Hothersall is offline 		 
Join Date: Apr 2007
Location: Thornlands, Brisbane.
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Hello Dave the white ring like structure is Olympus Mons volcano 25km tall, the white colour is cloud - ice crystals forming.

Regards, John.
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