This sugya has nothing to do with whether the sun orbits the earth or the earth orbits the sun. It’s about whether the sun at night is over Australia, or whether it doubles-back behind a “firmament” above our heads, hidden from view. This is not a matter of scientific theories. It is an established fact that the sun is over Australia when it is night in Eretz Yisroel. We don’t need to reinterpret Chazal – as Rav Yehudah HaNasi conceded, Chazal were mistaken about where the sun goes at night. Peacemaker, do you really think that scientists are one day going to discover that the sun really does go behind the sky at night and not over Australia?
Besides, virtually all the Rishonim confirmed Rav Yehudah HaNasi’s statement that the Chachmei Yisrael were wrong about this (and they did not believe that it is to be interpreted mystically/ metaphorically). Are you really saying that Rav Yehudah HaNasi and all the Rishonim were wrong?