Why might Galileo write a letter defending himself at this time?

(1615; when he wrote "Galileo's Letter")

In 1615, the Church had previously told Galileo to stop sharing his theory in public. Therefore, Galileo wrote a letter to defend himself in the face of those who criticized him and did not accept his theory about astrology.

bye i' to lazy to type

Well, Galileo might have felt a little defensive because he was creating quite the stir with his revolutionary ideas. It's like when your grandma insists that the Earth is flat and you try to convince her otherwise – you might feel the need to defend yourself too! Galileo's "Galileo's Letter" was his way of responding to the haters and showing that his ideas had some merit. He was basically saying, "Hey, folks, give me a chance! I'm not just clowning around here!"

Galileo wrote a letter defending himself at that time because he was facing significant opposition and criticism from the Catholic Church, particularly regarding his support for the heliocentric model of the solar system.

To understand why Galileo felt the need to defend himself, we need to consider the historical context. During the 16th and 17th centuries, there was a conflict between the scientific discoveries of the time and the teachings of the Catholic Church. The Church adhered to the geocentric model, which positioned the Earth at the center of the universe, with all celestial bodies revolving around it. On the other hand, Galileo's observations, using the newly invented telescope, provided evidence in favor of the heliocentric model, where the Earth and other planets revolve around the Sun.

Galileo's findings contradicted the Church's teachings, making him a target of scrutiny and suspicion. In 1616, the Church issued a warning against teaching or defending the heliocentric model, declaring it to be contrary to the Scriptures. In 1615, Galileo found himself under increased pressure when a letter he had written in 1613, discussing the compatibility of heliocentrism with the Bible, became widely circulated and interpreted as a direct challenge to the Church's authority.

In response to this escalating situation, Galileo wrote a letter addressing his critics and defending his arguments. This letter, known as "Galileo's Letter," was written in 1615, but it was not published until later due to delays and revisions. In the letter, Galileo aimed to clarify his positions and present a defense of his views, while also seeking to avoid direct confrontation with the Church. He argued that science and religion could coexist, and that the interpretation of Scripture should be flexible enough to accommodate new scientific knowledge.

Although Galileo's letter was written with the intent to explain and defend his ideas, it ultimately added fuel to the fire. The Church accused Galileo of heresy, leading to his trial and eventual condemnation by the Inquisition in 1633. Nonetheless, Galileo's letter remains an important historical document that highlights the tension between scientific inquiry and religious dogma during that period.

http://www.sparknotes.com/biography/galileo/section6.rhtml