Humans have known the Earth is round for more than 2,000 years, but a movement questioning that fact has reached the corners of American politics.

People involved in politics in Alabama, Georgia and Minnesota have attracted attention for their links to the flat Earth movement, although their beliefs and reasoning vary.

To some, the beliefs have a spiritual connection. Others say they have a healthy skepticism of scientific consensus.

Data from a 2021 University of New Hampshire survey shows nearly 10% of Americans believe the Earth is flat, indicating how widespread pseudo-scientific conspiracy theories are emerging in the U.S.