Question

why was it difficult for people to accept a heliocentric concept of the solar system?
scientists had no way to explain retrograde motion.
scientists did not check or confirm other scientists ideas.
information was published in italian and people could not understand it.
aristotle was famous and his ideas were supported by religious teachings.

Explanation:

Aristotle's geocentric view was long - standing and supported by religious teachings at the time, making it hard for people to accept the new heliocentric concept. Scientists did have ways to explain retrograde motion in the heliocentric model, scientific ideas were checked and confirmed, and the issue wasn't mainly about the language of publication.

Answer:

Aristotle was famous and his ideas were supported by religious teachings.