My World

Mars Rover Compared to Car

There have been four successful robotically operated Mars rovers, all managed by the Jet Propulsion Laboratory: Sojourner, Opportunity, Spirit and Curiosity. On January 24, 2016, NASA reported that current studies on Mars by Curiosity and Opportunity (the latter now defunct) would be searching for evidence of ancient life, including a biosphere based on autotrophic, chemotrophicRead more

My World

Red Star Comics

The star’s origins as a symbol of communist mass movements dates from the time of the Bolshevik Revolution and the Russian Civil War, but the precise first use remains unknown. On the other hand, one account of the symbol’s origin traces its roots to the Moscow troop garrison toward the end of World War I.Read more