And what country can preserve its liberties if their rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
Saturday, December 23, 2017
Travel across the surface of Mars with the Opportunity Rover.
NASA's Opportunity rover has 'run' a science marathon (and then some!) on the Red Planet, traveling over 26.2 miles. The Mars Exploration Rover team compiled ‘Hazcam’ imagery (2004 - 2015), combined with terrain vibration data, odometer readings and made a map to track the journey. -- More about the Opportunity's Mar's Marathon Win: http://goo.gl/eQ3hRh
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