Sep 25, 2025 · This picture compares the sizes of the Sun and the planets. If Earth were about 2 millimeters across, as it is in this picture, the Sun would be almost 218 millimeters (about 8-1/2 …

Celestial Bodies is a WebGL experiment that allows you to interactively compare the sizes of our sun, the planets and moons as well as (from February 2017) the sun and planets in the …

An interactive visualization of the enormous objects in our universe. See how the Earth compares to the Sun, black holes and the Milky Way.

Try your hand at this scale game: resize the objects until they're the correct relative sizes. You'll start with easy, everyday objects like golf balls and basketballs, then you can try your …

The Scale of the Universe 2 is an educational game in which you are shown the sizes of different things in our universe in relation to other different things. Slide your way into the largest …

Explore the sizes of many celestial objects, from the Moon to the whole Universe!

The tool will allow you to compare the size of all 8 planets and 4 dwarf planets in the solar system. The included planets are the following (closest to furthest from the sun): Mercury, Venus, …

SkyMarvels uses the incredible, free astronomy-simulation software CELESTIA to whisk you through space and time effortlessly! Awesome animations, scripts, add-ons, tools and more …

A simple way to compare the sizes of our solar system's planets, the sun and the moon. You can compare them side by side or with the smaller object positioned on the surface of the larger …