Unseen worlds

Mike Brown is a Caltech astronomer who is fixated with trans Neptunian objects, that is chunks of matter in orbit around our Sun at a distance larger than Neptune’s major axis of 30 astronomical units (that is, 30 times the distance

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Aristoteles vindicatus

Few people in history have known such a drastic reversals of popularity as the 4th century BC Greek thinker Aristotle of Stagira. Aristotle’s influence was enormous in the ancient world, where the two aspects of his philosophy, naturalistic and speculative, alternated.

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