Acknowledgments
Introduction
Step 1. THE SUN
1. Look. Don’t Touch.
2. What’s That Big Bright Thing Made Of?
3. Fusion: Energy Hidden in Plain Sight
Step 2. BLACK HOLES
4. Old Gravity and New Gravity
5. Black Holes in Relativity
6. The Lives of Stars
7. Black Hole Hunting
8. Gravitational Waves
Step 3. DARK MATTER—DARK ENERGY
9. Galactic Scale
10. What Is Dark Matter?
11. All the Way Out
12. Dark Energy, Antigravity, and Einstein’s Fudge
A Step Back to Earth
13. Road Maps
14. Science as It Is Written
Glossary
Suggestions for Further Reading