Inquisitionsprozess gegen galileo biography

17th century conflict between Galileo Galilei and the Roman Catholic Church

The Galileo affair (Italian: il processo a Galileo Galilei) began around 1610,^[1] and culminated with the trial and condemnation of Galileo Galilei by the Roman Catholic Inquisition in 1633.

Galileo was prosecuted for holding as true the doctrine of heliocentrism, the astronomical model in which the Earth and planets revolve around the Sun at the centre of the universe.

In 1610, Galileo published his Sidereus Nuncius (Starry Messenger), describing the observations that he had made with his new, much stronger telescope, amongst them, the Galilean moons of Jupiter.

With these observations and additional observations that followed, such as the phases of Venus, he promoted the heliocentric theory of Nicolaus Copernicus published in De revolutionibus orbium coelestium in 1543. Galileo's opinions were met with opposition within the Catholic Church, and in 1616 the Inquisi