Galileo affair

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 his support 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 discoveries were met with opposition within the Catholic Church, and in 1616 the Inquisition declared heliocentrism to be "formally heretical". Galileo went on to propose a theory of tides in 1616, and of comets in 1619; he argued that the tides were evidence for the motion of the Earth.

In 1632, Galileo published his Dialogue Concerning the Two Chief World Systems, which defended heliocentrism, and was immensely popular. Responding to mounting controversy over theology, astronomy and philosophy, the Roman Inquisition tried Galileo in 1633, found him "vehemently suspect of heresy", and sentenced him to house arrest where he remained until his death in 1642.^[2] At that point, heliocentric books were banned and Galileo was ordered to abstain from holding, teaching or defending heliocentric ideas after the trial.^[3]

The affair was complex since very early on Pope Urban VIII had been a patron to Galileo and had given him permission to publish on the Copernican theory as long as he treated it as a hypothesis, but after the publication in 1632, the patronage was broken off due to numerous reasons.^[4] Historians of science have corrected numerous false interpretations of the affair.^[2]^[5]^[6]

^ Blackwell (1991, p. 2). Blackwell (1991, p. 50) dates the start of the Galileo affair to 1610. Finocchiaro (1989, p. 1) puts it a few years later, in 1613.
^ ^a ^b Finocchiaro, Maurice A. (2014). "Introduction". The Trial of Galileo : Essential Documents. Hackett Publishing Company, Incorporated. pp. 1–4. ISBN 978-1-62466-132-7. ..one of the most common myths widely held about the trial of Galileo, including several elements: that he "saw" the earth's motion (an observation still impossible to make even in the twenty-first century); that he was "imprisoned" by the Inquisition (whereas he was actually held under house arrest); and that his crime was to have discovered the truth. And since to condemn someone for this reason can result only from ignorance, prejudice, and narrow-mindedness, this is also the myth that alleges the incompatibility between science and religion.
^ Cite error: The named reference h218 was invoked but never defined (see the help page).
^ "Pope Urban VIII (Maffeo Barberini) (1568–1644)". The Galileo Project. Rice University. Upon Barberini's ascendance of the papal throne, in 1623, Galileo came to Rome and had six interviews with the new Pope. It was at these meetings that Galileo was given permission to write about the Copernican theory, as long as he treated it as a hypothesis. After the publication of Galileo' s Dialogue Concerning the Two Chief Systems of the World, in 1632, the patronage relationship was broken. It appears that the Pope never forgave Galileo for putting the argument of God's omnipotence (the argument he himself had put to Galileo in 1623) in the mouth of Simplicio, the staunch Aristotelian whose arguments had been systematically destroyed in the previous 400-odd pages. At any rate, the Pope resisted all efforts to have Galileo pardoned.
^ Cite error: The named reference Speller2008 was invoked but never defined (see the help page).
^ McMullin (2008)

[1] Blackwell (1991, p. 2). Blackwell (1991, p. 50) dates the start of the Galileo affair to 1610. Finocchiaro (1989, p. 1) puts it a few years later, in 1613.

[Trial_Galileo_Essential-2] Finocchiaro, Maurice A. (2014). "Introduction". The Trial of Galileo : Essential Documents. Hackett Publishing Company, Incorporated. pp. 1–4. ISBN 978-1-62466-132-7. ..one of the most common myths widely held about the trial of Galileo, including several elements: that he "saw" the earth's motion (an observation still impossible to make even in the twenty-first century); that he was "imprisoned" by the Inquisition (whereas he was actually held under house arrest); and that his crime was to have discovered the truth. And since to condemn someone for this reason can result only from ignorance, prejudice, and narrow-mindedness, this is also the myth that alleges the incompatibility between science and religion.

[h218-3] Cite error: The named reference h218 was invoked but never defined (see the help page).

[Rice_Galileo-4] "Pope Urban VIII (Maffeo Barberini) (1568–1644)". The Galileo Project. Rice University. Upon Barberini's ascendance of the papal throne, in 1623, Galileo came to Rome and had six interviews with the new Pope. It was at these meetings that Galileo was given permission to write about the Copernican theory, as long as he treated it as a hypothesis. After the publication of Galileo' s Dialogue Concerning the Two Chief Systems of the World, in 1632, the patronage relationship was broken. It appears that the Pope never forgave Galileo for putting the argument of God's omnipotence (the argument he himself had put to Galileo in 1623) in the mouth of Simplicio, the staunch Aristotelian whose arguments had been systematically destroyed in the previous 400-odd pages. At any rate, the Pope resisted all efforts to have Galileo pardoned.

[Speller2008-5] Cite error: The named reference Speller2008 was invoked but never defined (see the help page).

[McMullin_2008-6] McMullin (2008)

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Galileo affair

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