Observations show the universe appears flat, yet its true size and global shape beyond the observable horizon may remain forever unknown.

Google has pushed out what it says is Google Earth’s “biggest update since 2017” with a new 3D time-lapse feature. Entering the new “Timelapse” mode of Google Earth will let you fly around the virtual ...

A common refrain for students in a math class is “when are we ever gonna need this?” Real World Math is a site that tries to put math skills into real-world situations to help them feel more useful to ...

Introduction If you wanted to measure the circumference of Earth, how long would your tape measure have to be? Would you need to walk the whole way around the world to find the answer? Do you think ...

Have you ever wondered what life would be like if Earth weren’t shaped like a sphere? We take for granted the smooth ride through the solar system and the seamless sunsets afforded by the planet’s ...

Mathematicians say that they have solved a major, decades-old problem in geometry: how to reconstruct the inner structure of a mystery object ‘X’ from knowing only how fast waves travel between any ...