NASA confirms evidence that liquid water flows on today’s Mars NASA New findings from NASA’s Mars Reconnaissance Orbiter (MRO) provide the strongest evidence yet that liquid water flows intermittently on present-day Mars. Using an imaging spectrometer on MRO, researchers detected signatures of hydrated minerals on slopes where mysterious streaks are seen on the Red Planet. […]
Archive | September 28, 2015
United States: An immigration nation
September 28, 2015
United States: An immigration nation This cartoon appeared in the Pittsburgh Courier newspaper in 1939 during World War II. The image was to give a reflection on which Americans had the opportunity to fight for “freedom” at home and around the world. By 1941, the United States Army Air Forces would establish an all African American military […]
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September 28, 2015
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