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July 8, 2019
Adrift in space, on this insignificant blue dot, we look for certainty. In astrophysics, where everything moves, a centre and points of reference are calculated: the measure is a barycentre, that calculates a relative point between two or more solar bodies, using mass and motion. When you can pin down found objects to a path and a pattern, and track how their path interacts with other objects, definitions of relationships are determined based on the mode of their orbits. Then by a wobble, we know suns and planets, planets and moons, the parent, the child, the orphans, from their behaviours.