Here are some thought provoking books that I would recommend that you read if you are interested in human intelligence, artificial intelligence, the history of thought and gravity:

I. Michio Keyko: Hyperspace
II. Diane Eisler: The Chalice and the Blade
III. Daniel Quinn: Ishmael
IV.Robert Piersig:  Zen and the Art of Motorcycle Maintainence
V. Timothy Ferris: The Whole Shebang.
VI. Convey & Heinfield: Frontiers of Complexity
VII. Hermann Weil: Space, Time Matter.
VIII. Stephen Hawking: A Brief History of Time.

Here are also some links that you may find interesting:

General News:

NASA Spies Largest-Ever Antarctic Ozone Hole
The Ozone Hole Tour : Home Page
Himalyan Ice Cores Reveal Climate Warming, Catastrophic Drought
Scientific American: Quick Article Summaries: Magnificent Cosmos: February 1998
Specifically scifi:
SFWA Index
Star Wars: Episode II - The Official Web Site


Introduction to Cosmology Web Site
What is Theoretical Cosmology?
Astronomy Tutorial: The Big Bang
Stephen Hawking


The Chaos Hypertextbook
Santa Fe Institute

Education resources-astronomy

Astronomy Picture of the Day
SpaceDaily.Com - Your Internet Space Portal
Views of the Solar System
Students for the Exploration and Development of Space (SEDS)
Skyhound by CapellaSoft
Mr. Galaxy's Supernovae
Astroweb Category Listing
Educational Activities at the Space Telescope Science Institute
Missions, Instruments and Programs
Astronomical Images Archive
Astronomy (Science)
Astronomy and Astrophysics at NSSDC
Astronomy activities index
Mars Introduction
Brief History of Cosmology
Astronomy HyperText Book
Earth Science and Solar System Exploration Division
red giant star, Definition from AP Dictionary of Science and Technology
Red Giant

Education resources-physics

Entropy on the World Wide Web
Intensity: the Inverse Square Law
TIPTOP: Welcome Page
Physics (Science)
Web Physics Page
Contemporary Physics Education Project (CPEP)
Particle Physics Education Sites