We all know the Earth is round. Not perfectly so but close enough. We live on an oblate spheroid, a slightly squashed sphere that's wider at the equator than around the poles. The difference between ...

I've seen many justifications online about why the Earth may be flat (and maybe that says more about the amount of time I spend on Reddit). Some say planes fly straight, and therefore the Earth must ...

A group of flat Earthers has ventured to the southernmost land of Antarctica in an attempt to "end the debate over the shape of the Earth” – although we’re pretty sure that was already achieved by ...

The claim: Earth isn't curved or moving; air pressure couldn't exist 'without a container' Some social media users are sharing a meme that claims to present evidence that Earth is flat instead of ...

There are many lesser-known facts about the planet Earth, but one thing we know for sure is that it's a geoid - a roughly ellipsoidal shape. However, flat-earthers have been trying (and failing) to ...

Seeing the North Star year-round through a hole drilled at eye level in the now-destroyed Georgia Guidestones monument in the United States is not proof that the Earth is flat, even though a video ...

A Jan. 3 Instagram video shows what appears to be a cellphone video panning between the sun and moon in a cloudless sky in the daytime. "The sun doesn't illuminate the moon. The moon is its own light.