Contents

Preface

1. A Very Good Summer

2. Wrinkles in Time

3. How Light Sheds Light on Gravity

4. Does Gravity Do the Twist?

5. Celestial Lighthouses for Testing Relativity

6. How to Use a Black Hole to Test General Relativity 141

7. Gravitational Waves Detected At Last!

8. What Do Gravitational Waves Tell Us?

9. A Loud Future for Gravitational Wave Science

10. A Dialogue

Suggestions for Further Reading

Index