Hey, just so you know, I've hit at least two links that are not working.

Should definitely remove or replace them :)

Forgive me if someone else has posted this, but I found this video absolutely staggering.

The Known Universe by the American Museum of Natural History:

Truly, what Atoms are to us, we are to the universe.

The ultimate list of broken urls of the ultimate collection of links related to space:

Resources:

NASA Breakthrough Propulsion Physics Project Art:

Global Topographic Data:

Space and technology Generators:

Being an Informal Examination of Offensive Systems for Use in Deep-space Combat:

Celestia Earth textures:

Planetary image maps:

A collection of space links:

The NASA's Bluemarble ftp site (direct link):

Books/movies/games:

The Grand List of Overused Science Fiction Clichés:

Sirroco Station:

Galaxies/Universe:

A list of nearby galaxy groups

Atlas of the universe:

Nebulas:

Volume visualization of the Orion Nebula:

Making a nebula texture in photoshop:

The Orion Nebula (photoshop tutorial):

Links for the programmer:

Globular Clusters:

JPL Solar System Simulator:

The 100 nearest star systems:

Data for important stars:

A solar system generator with RPG rules:

Planets:

Keplerian/Orbital elements and orbits:

The living Earth:

Fractal Models of Natural Phenomena: (SSL error)

Earth rendering in Maya:

Guide to extrasolar planets:

Computing planet positions using mean orbital elements:

Use defined astronomical functions in Excel:

3D Engines/Software:

Magrathea Simulation Engine

Removing them would be greatly appreciated.