Is the Earth flat

After reading Forbidden Archeology by Michael Cremo many years ago, and how he is pointing to the Vedic scriptures that tell us that atomically homo sapiens sapiens have been here for many millions of years, and how the Vedas talk about the cycles of Brahmas in/out breaths in the great lengths of time, which I think are actual historical records of human history. From my limited research Vedic Astrology has its beginnings from this astrologer. https://en.wikipedia.org/wiki/Aryabhata Even though he and lots of ancient indian calendrical events & rituals are linked to solstices and equinoxes, the question becomes…. My question is if the Vedas have such a great grasp on the human historical record and the time cycles of the universe, how did Vedic astrology get it so wrong?