Here’s what you’ll learn when you read this story: Discover how losing thousands of satellites could instantly shut down GPS, ...

A hollow Earth would also lose a whole lot of mass, since most of it is accumulated in the planet’s inner part – the core and the mantle. We’re not just talking a few kilos, like what you put on ...

Suppose you could speed up Earth’s rotation so that a day was only half as long? What would happen? Well, for starters we’d have to make new clocks that only have hours 1 to 6 for am and pm. If you ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

What would Earth be like if there were no Moon? Peter Allen RhodesNorth Bellmore, New York Without the Moon, Earth's geology, ...

Truly making Earth the centre of our solar system is going to take more than just fudging the maths. The sun is so much more massive than our puny planet that it is nearly impossible to force the ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. An asteroid between about 130 and 300 ft. (40 and 90 meters) ...