Because the theory had predicted the motions of the planets better than any known method at that time.
brownian motion was accepted early on, but his special and general theories of relativity, and his theory regarding quanta took longer to be accepted by all.
A scientific theory becomes better accepted as it helps explain more and more observations.
When a chemical theory is repeatedly tested and proven to be true under a variety of conditions over a significant period of time, it may be elevated to the status of a law. This indicates that the relationship described by the theory is a fundamental and universally accepted principle in chemistry.
People did not trust Copernicus's heliocentric model primarily because it challenged the long-standing Ptolemaic geocentric view that had been endorsed by the Church and widely accepted for centuries. The Ptolemaic system was deeply ingrained in cultural and religious beliefs, making it difficult for people to accept a radically different perspective. Additionally, Copernicus lacked sufficient observational evidence to convincingly argue for his theory at the time, leading many to remain skeptical of his claims.
The Vatican did not believe in heliocentric theory for a long time.
Cleopatra ruled in the Ptolemaic period.
The process of validating theories involves rigorous testing, peer review, and replication of results, which can take time. Additionally, there may be resistance to change existing beliefs or paradigms that a new theory challenges. It often requires a significant amount of evidence and consensus within the scientific community before a new theory is accepted.
Because people liked to believe that the Earth was at the centre of the universe and the Ptolemaic model of the universe had been seen as accurate for so long that any other idea was disapproved. It's like Darwin's theory of evolution, at the time nobody liked to believe it, it was only years later that we realised it was an extremely likely theory.
Yes, Einstein's theory of relativity was eventually accepted by the scientific community after experimental evidence supported its predictions. It revolutionized our understanding of space, time, and gravity.
The cell theory became an accepted part of biology in the 19th century. Rudolf Virchow, Matthias Schleiden, and Theodor Schwann are credited with contributing to the development and acceptance of the cell theory during this time period.
Many geologists and scientists at the time made fun of Alfred Wegener's Drift Theory, dismissing it as implausible and unscientific. Wegener's theory of continental drift proposed that the continents were once connected and drifted apart over time, which was not widely accepted until much later when the theory of plate tectonics was formulated.
They were accepted a very long time before then so the question is irrelevant.