Let's say we want to build a model of the sun and Earth alone. Earth has a radius of about 6,371 kilometers (3,959 miles), but let's represent this with a marble 1 centimeter in diameter.

This diagram easily breaks down the science of what's happening in space with the sun, moon, and Earth during the April 8 total solar eclipse.

A diagram showing Earth's crust, mantle and core. (Image credit: FoxGrafy via Shutterstock) Where is Earth located? Our planet sits in a small corner of the Milky Way galaxy, 25,000 light-years ...

The Earth has a layered structure made up of crust, mantle, outer core and inner core. Find out more in this BBC Bitesize guide for students aged 11-14. ... In this diagram, ...

Fact check roundup: Debunking the flawed science behind flat Earth claims. Scale of laser test is too small to show the Earth’s curve Furthermore, scientists say a laser test at the scale ...

The Earth is made up of different layers: Therefore, instead of tectonic plates moving because of the convection currents, evidence suggests it is the plates that drive the convection. Slab pull ...

This article was originally published with the title “ Population of the Earth, in Diagram ” in SA Supplements Vol. 39 No. 1006supp (April 1895), p. 16081 doi:10.1038 ...