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From Pluto to viral structures, this year produced an array of dazzling pictures.

In 1615 Katharina, mother of the great scientist Johannes Kepler, was accused of witchcraft. Ulinka Rublack asks what her landmark trial tells us about early-modern attitudes towards science, nature and the family.

GeoGebra is dynamic mathematics software for all levels of education that brings together geometry, algebra, spreadsheets, graphing, statistics and calculus in one easy-to-use package. GeoGebra is a rapidly expanding community of millions of users…