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#Mon Aug 09 12:14:31 CEST 2010
Text__08UJMKOeEd-WfYQ0GneCwQ_title=
Text__08UJMKOeEd-WfYQ0GneCwQ_text=By combining all measurements collected during over ten years, it was possible to determine a unique keplerian orbit for a star, known as S2. S2 orbit provides compelling evidence for the existence of a supermassive black hole at the center of our galaxy.