100 Facts Stars and Galaxies covers key topics in easily-digestible, numbered facts. Every page showcases amazing illustrations and photographs that clarify difficult points for children. An amazing space book for both confident and reluctant readers aged 7+. Essential topics covered in 100 Facts Stars and Galaxies: . How a star is born . What happens when galaxies collide . How many stars exist in the Milky Way Examples of 'I don't believe it' fascinating facts: . The core of a protostar needs to ne 10 million degrees Celsius before nuclear reactions occur. . White dwarfs are so dense that a single teaspoon of them could weigh 14 tonnes - more than two African elephants! . Supernovae explosions fling out gas and dust at high speed - as fast as 30,000 kilometres per second. Activities to make learning accessible and interactive include: . Make binary stars out of modeling clay. . Understand how galaxies in the Universe are formed with just a balloon. . Quiz question: Which is the most common gas in a nebula?