Was there a beginning of time? Could time run backwards? Is the universe infinite or does it have boundaries? These are just some of the questions considered in the internationally acclaimed masterpiece by the world renowned physicist - generally considered to have been one of the world's greatest thinkers. It begins by reviewing the great theories of the cosmos from Newton to Einstein, before delving into the secrets which still lie at the heart of space and time, from the Big Bang to black holes, via spiral galaxies and strong theory. To this day A Brief History of Time remains a staple of the scientific canon, and its succinct and clear language continues to introduce millions to the universe and its wonders. This new edition includes recent updates from Stephen Hawking with his latest thoughts about the No Boundary Proposal and offers new information about dark energy, the information paradox, eternal inflation, the microwave background radiation observations, and the discovery of gravitational waves. It was published in tandem with the app, Stephen Hawking's Pocket Universe.

Casina's friend Steve tells her there are hidden Portals, or entrances, at the City's shops that will transport her to another Place and Time. If she agrees to take up the challenge, he will give her clues as to what she must do to put things right. Testing this, Casina discovers a dark and empty Dr Who shop. She steps closer, the air begins to shimmer and Casina finds herself hurtling through Space no less. Coming to a halt, she hears a humming sound and soon she is witnessing the birth of a New Planet.Further adventures follow such as visiting the Garden of Eden and the Great Pyramids of Egypt, which Casina had always wanted to see.