First there was the Big Bang. Then our galaxy was hurtling through space at the speed of light, along with billions and billions of other planets, stars, satellites, meteors, comets, asteroids, meteorites and goodness only knows what else. This gob-smacking guide gives you mind-boggling information about our galaxy...and beyond. Jump up and down with excitement as you're whisked away on a grand tour of the solar system, where you'll go skiing on Mars and meet the sad creature from Pluto. Gasp at some incredible facts about red giants, white dwarves and supernovas. Plus...find out what happens when a bloke called Sid gets too close to a black hole.