In this SpaceRip video we look at news of one of the nearest and richest stellar associations in our galaxy. Cygnus OB2, located about 4,700 light-years away, hosts some 3,000 hot stars, including about 100 in the O class. Weighing in at more than a dozen times the sun's mass and sporting surface temperatures five to ten times hotter, these ginormous blue-white stars blast their surroundings with intense ultraviolet light and powerful outflows called stellar winds.
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