For the source text click/tap here: Pesachim 94
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A large part of this daf is devoted to discussions between the Sages about time and distance, and their relationship with the length of day and night.
According to the description in the Gemara, the way the sun appears crossing the sky during the day is due to a physical pathway that exists across the sky. The Ge’onim further note, that since Jewish scholars have embraced the positions of the scientific world with regard to these types of questions, the discussion and descriptions that appear in our Gemara are not
to be understood as literal truth.
I cite my father in law's novel approach to reading talmud and the cosmology of the day to explain sunset.(His Yahrzeit is shushan purim next shabbes)