England Key Stage 4

Distances to objects in space are very, very large. The nearest star (excluding the Sun), Alpha Centauri, is 41.23 trillion km, or 41,320,000,000,000 km!!

How far apart are the planets in the Solar System. The answer may surprise you!

The distance between the planets in our Solar System is not regular. The inner 4 rocky planets are spaced much more tightly than the outer 4 giant planets.

Download, print and display this free poster!

Have you ever wondered how big each of the planets is? Bigger or smaller than the Earth?

Do you know how many planets in our Solar System have rings? Or how many have moons? Learn some interesting facts about the planets in our Solar System with these free printable posters!

Einstein showed that the speed of light is a universal constant. This means that it always travels at the same speed in a vacuum.