Way before Man stepped on the moon and gazed afar at our planet, Muslim scholars knew that the Earth was round. While many ...

The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the fifth largest planet in our solar system ...

So the trick is to find an orbital radius which works out to give a period of 24 hours. Can it be done? To find out, equate the force of gravity at a certain earth-satellite distance to the ...

A look at the evidence for the Earth being round or spherical. Aristotle’s reasoning is explained. The evidence includes a ship’s hull disappearing first over the horizon, the stars ...

The Earth has a layered structure, including the core, mantle and crust. The crust and upper mantle are cracked into large pieces called tectonic plates. These plates move slowly, but can cause ...