  Heraclitus provided some sort of discussion of meteorological and astronomical phenomena. He studied the disappearance and reappearance of the moon at the end and beginning of a month (Oxyrhynchus Papyri LIII 3710 ii. 43–47 and iii. 7–11–the clearest evidence that Heraclitus had a scientific interest in astronomy). He explained the sun and moon as bowls full of fire. As the moon’s bowl rotated it caused the phases. Eclipses were the result of a rotation of the convex side of the bowls to face the earth. We have no reports about the earth itself, but we may suppose that, like his predecessors, Heraclitus viewed it as flat. Evaporations from the earth and sea apparently provided fuel for the heavenly bodies, which burned like oil lamps. 