<human>: Is there any evidence that the world is round?
<bot>: Yes, there is evidence that the world is round. The Earth's gravity pulls objects towards its center of mass and this force causes objects to orbit around it in a circular path. This phenomenon has been observed many times by astronomers who have recorded the movement of stars and planets around the sun and moon. Additionally, we can see our planet from space and the curvature of the Earth can be seen from space. These are all pieces of evidence that prove the world is round.