Do Gravity Waves Exist?

This is one of the big unanswered questions in physics. Gravity telescopes such as the LIGO and the Geo 600 may soon tell us. These massive detectors are sensitive to a displacement of 1 part in 1000000000000000000000-- that's like "measuring a change of one hydrogen atom diameter in the distance from the Earth to the Sun." Such a discovery would mean a tremendous boom to science. And big cash payouts to those who put their money where there mouth was.

The Grand Illusions Toy Shop

Wonderful toys for geeky girls and boys. A collection of unusual and intensely desirable science-based gewgaws and gadgets. Don't miss the lucidly written articles that explain the underlying principles.

Deep Space and The Good Earth: pretty picture shows. (flash)

A multimedia trip in photographs and music from millions of light years in deep space to our own small planet Earth.

Google Analytics

Google Analytics tells you everything you want to know about how your visitors found you and how they interact with your site. You'll be able to focus your marketing resources on campaigns and initiatives that deliver ROI, and improve your site to convert more visitors.

Stellarium

A free program which renders realistic skies in real time, and more.

100 Greatest Internet Moments

Chinese archaeologists report discovery of 4,100-year-old observatory