ASTEROIDS COMETS AND METEORS BROWN BEAR BOOKS Mary-Jane Wilkins Consultant Giles Sparrow FRAS
When the Sun and the planets were made lots of pieces of rock were left over Millions of these rocks fly around in space today Rocks in Space 4 Sometimes rocks from space crash into planets and moons The biggest rocks make holes where they land These holes are called craters WOW
Big rocks that fly around or orbit the Sun are called asteroids see below Smaller rocks are meteoroids Comets are giant balls of ice and rock They are like huge rocky snowballs in space 5 On a clear night you can sometimes see a comet from Earth
