Astronomers have been trying to figure out how many galaxies there are in the cosmos for a long time. To get their estimate, they employ a technique known as "representative sampling." They count the number of galaxies in each sector by dividing the sky into equal-sized parts.
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Mexico is a federal presidential representative democratic republic wherein the President is both the head of state and head of government.
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Geography. Greece has a mountainous terrain, creating isolated city states with little to no communication through the mountains.
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In 1776 New Jersey became one of the original thirteen states. Admission to the Union on 18th December 1787, it was admitted as the 3rd state.
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