Learn how we know the Earth is round, and the science behind the shape of our gravitational field.

This 2014 image of a tropical storm from the International Space Station clearly shows Earth's curvature. NOAA/Getty Images An average adult is between 5 feet and 6 feet 6 inches tall (1.5 to 2 meters ...

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 ...

Recently, a lot of celebrities (and other random people) have been asserting that the Earth is flat. Maybe they are doing it for attention. Perhaps it’s all some attention-grabbing scheme. If so, it ...

The flat-Earth believer "Mad" Mike Hughes postponed his plans to launch himself in a homemade rocket thousands of feet in the air—but there is plenty of evidence that already reveals the Earth is ...

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.

Neil deGrasse Tyson recently called out flat-earthers in one tweet: It's not just lunar eclipses that would look different if Earth were actually flat. Sports, plants, and even the oceans would be ...

Bad news, flat-earthers. Neil deGrasse Tyson is here to prove once again the Earth is indeed round. The famed astrophysicist and author appeared in a new video through his YouTube channel StarTalk to ...

Earth is surrounded by a magnetic field generated by electric currents from within the planet. Compasses take advantage of this field to identify north and serve as a navigational aid. But one social ...

Earth — the blue marble — is our spherical home. But what if Earth were flat? After all, some people, called flat-earthers, truly believe in this retrograde idea. How would everyday life function?

The president of the Spanish soccer club that changed its name to promote the "Flat Earth" conspiracy theory slammed his critics on Spanish radio station Cadena Ser Monday. Javi Poves—who changed ...