1. The extravagant universe: exploding stars, dark energy, and the accelerating cosmos. By Robert P. Kirshner. Princeton University Press.
2. The runaway universe: the race to find the future of the cosmos. By Donald Goldsmith. Perseus Publishing.
3. The accelerating universe: infinite expansion, the cosmological constant, and the beauty of the cosmos. By Mario Livio and Allan Sandage. John Wiley & Sons.