The Universe in a Nutshell
by Stephen William Hawking
Bantam; Published: 2001-11-06; Hardcover; Book
Best price: $7.25
Price in other shops: $35.00

---

Cosmos
by Carl Sagan
Ballantine Books; Published: 1985-10-12; Mass Market Paperback; Book
Best price: $3.71
Price in other shops: $7.99

---

Hubble: Imaging Space and Time
by David Devorkin, Robert Smith
National Geographic; Published: 2008-09-30; Hardcover; Book
Best price: $31.02
Price in other shops: $50.00

---

NightWatch: A Practical Guide to Viewing the Universe
Firefly Books; Published: 2006-09-12; Spiral-bound; Book
Best price: $18.66
Price in other shops: $35.00

---

The Fabric of the Cosmos: Space, Time, and the Texture of Reality
by Brian Greene
Vintage; Published: 2005-02-08; Paperback; Book
Best price: $7.25
Price in other shops: $16.95

---

The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory
by Brian Greene
W. W. Norton & Company; Published: 2003-10-20; Hardcover; Book
Best price: $11.97
Price in other shops: $19.95

---

The Black Hole War: My Battle with Stephen Hawking to Make the World Safe for Quantum Mechanics
by Leonard Susskind
Little, Brown and Company; Published: 2008-07-07; Hardcover; Book
Best price: $13.70
Price in other shops: $27.99

---

Dark Mission: The Secret History of NASA
by Richard C. Hoagland, Mike Bara
Feral House; Published: 2007-10-16; Paperback; Book
Best price: $14.97
Price in other shops: $24.95

---

A Brief History of Time
by Stephen Hawking
Bantam; Published: 1998-09-01; Paperback; Book
Best price: $6.99
Price in other shops: $18.00

---

Death from the Skies!: These Are the Ways the World Will End . . .
by Ph.D., Philip Plait
Viking Adult; Published: 2008-10-16; Hardcover; Book
Best price: $16.21
Price in other shops: $25.95